diff --git a/android/src/io/anuke/mindustry/AndroidLauncher.java b/android/src/io/anuke/mindustry/AndroidLauncher.java
index 97443f0d3b..2cc928d322 100644
--- a/android/src/io/anuke/mindustry/AndroidLauncher.java
+++ b/android/src/io/anuke/mindustry/AndroidLauncher.java
@@ -1,5 +1,6 @@
 package io.anuke.mindustry;
 
+import android.*;
 import android.app.*;
 import android.content.*;
 import android.content.pm.*;
@@ -21,6 +22,7 @@ import io.anuke.mindustry.ui.dialogs.*;
 
 import java.io.*;
 import java.lang.System;
+import java.util.*;
 
 import static io.anuke.mindustry.Vars.*;
 
@@ -68,14 +70,16 @@ public class AndroidLauncher extends AndroidApplication{
 
             @Override
             public void showFileChooser(boolean open, String extension, Consumer<FileHandle> cons){
-                if(VERSION.SDK_INT >= 19){
+                if(VERSION.SDK_INT >= VERSION_CODES.Q){
                     Intent intent = new Intent(open ? Intent.ACTION_OPEN_DOCUMENT : Intent.ACTION_CREATE_DOCUMENT);
                     intent.addCategory(Intent.CATEGORY_OPENABLE);
-                    intent.setType("*/*");
+                    intent.setType(extension.equals("zip") ? "application/zip" : "*/*");
                     addResultListener(i -> startActivityForResult(intent, i), (code, in) -> {
                         if(code == Activity.RESULT_OK && in != null && in.getData() != null){
                             Uri uri = in.getData();
 
+                            if(uri.getPath().contains("(invalid)")) return;
+
                             Core.app.post(() -> Core.app.post(() -> cons.accept(new FileHandle(uri.getPath()){
                                 @Override
                                 public InputStream read(){
@@ -97,6 +101,24 @@ public class AndroidLauncher extends AndroidApplication{
                             })));
                         }
                     });
+                }else if(VERSION.SDK_INT >= VERSION_CODES.M && !(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
+                    checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)){
+                    chooser = new FileChooser(open ? "$open" : "$save", file -> file.extension().equalsIgnoreCase(extension), open, file -> {
+                        if(!open){
+                            cons.accept(file.parent().child(file.nameWithoutExtension() + "." + extension));
+                        }else{
+                            cons.accept(file);
+                        }
+                    });
+
+                    ArrayList<String> perms = new ArrayList<>();
+                    if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
+                        perms.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
+                    }
+                    if(checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
+                        perms.add(Manifest.permission.READ_EXTERNAL_STORAGE);
+                    }
+                    requestPermissions(perms.toArray(new String[0]), PERMISSION_REQUEST_CODE);
                 }else{
                     super.showFileChooser(open, extension, cons);
                 }
diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index d0ef17bcad..03c38a2746 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -174,6 +174,7 @@ save.playtime = Playtime: {0}
 warning = Warning.
 confirm = Confirm
 delete = Delete
+view.workshop = View In Workshop
 ok = OK
 open = Open
 customize = Customize Rules
@@ -202,7 +203,7 @@ wave.enemy = [lightgray]{0} Enemy Remaining
 loadimage = Load Image
 saveimage = Save Image
 unknown = Unknown
-custom = Custom 
+custom = Custom
 builtin = Built-In
 map.delete.confirm = Are you sure you want to delete this map? This action cannot be undone!
 map.random = [accent]Random Map
@@ -222,6 +223,7 @@ editor.oregen.info = Ore Generation:
 editor.mapinfo = Map Info
 editor.author = Author:
 editor.description = Description:
+editor.nodescription = A map must have a description of at least 4 characters before being published.
 editor.waves = Waves:
 editor.rules = Rules:
 editor.generation = Generation:
@@ -288,6 +290,7 @@ editor.resizemap = Resize Map
 editor.mapname = Map Name:
 editor.overwrite = [accent]Warning!\nThis overwrites an existing map.
 editor.overwrite.confirm = [scarlet]Warning![] A map with this name already exists. Are you sure you want to overwrite it?
+editor.exists = A map with this name already exists.
 editor.selectmap = Select a map to load:
 
 toolmode.replace = Replace
diff --git a/core/src/io/anuke/mindustry/ClientLauncher.java b/core/src/io/anuke/mindustry/ClientLauncher.java
index e63fc9ac01..fe15d49d88 100644
--- a/core/src/io/anuke/mindustry/ClientLauncher.java
+++ b/core/src/io/anuke/mindustry/ClientLauncher.java
@@ -40,6 +40,7 @@ public abstract class ClientLauncher extends ApplicationCore implements Platform
         batch = new SpriteBatch();
         assets = new AssetManager();
         assets.setLoader(Texture.class, "." + mapExtension, new MapPreviewLoader());
+        assets.load("sprites/error.png", Texture.class);
         atlas = TextureAtlas.blankAtlas();
         Vars.net = new Net(platform.getNet());
 
diff --git a/core/src/io/anuke/mindustry/Vars.java b/core/src/io/anuke/mindustry/Vars.java
index 720b7d33bf..24807883d1 100644
--- a/core/src/io/anuke/mindustry/Vars.java
+++ b/core/src/io/anuke/mindustry/Vars.java
@@ -122,8 +122,6 @@ public class Vars implements Loadable{
     public static FileHandle saveDirectory;
     /** data subdirectory used for plugins */
     public static FileHandle pluginDirectory;
-    /** old map file extension, for conversion */
-    public static final String oldMapExtension = "mmap";
     /** map file extension */
     public static final String mapExtension = "msav";
     /** save file extension */
@@ -139,7 +137,7 @@ public class Vars implements Loadable{
     public static EntityCollisions collisions;
     public static DefaultWaves defaultWaves;
     public static LoopControl loops;
-    public static Platform platform;
+    public static Platform platform = new Platform(){};
     public static Plugins plugins;
 
     public static World world;
diff --git a/core/src/io/anuke/mindustry/content/StatusEffects.java b/core/src/io/anuke/mindustry/content/StatusEffects.java
index cb4035dd0e..fb94a881ce 100644
--- a/core/src/io/anuke/mindustry/content/StatusEffects.java
+++ b/core/src/io/anuke/mindustry/content/StatusEffects.java
@@ -46,6 +46,7 @@ public class StatusEffects implements ContentList{
                 if(unit.getTeam() == waveTeam){
                     Events.fire(Trigger.shock);
                 }
+                result.set(this, time);
             }));
             opposite(() -> burning);
         }};
diff --git a/core/src/io/anuke/mindustry/core/Control.java b/core/src/io/anuke/mindustry/core/Control.java
index 4a3d94a3b1..c954235c13 100644
--- a/core/src/io/anuke/mindustry/core/Control.java
+++ b/core/src/io/anuke/mindustry/core/Control.java
@@ -371,11 +371,13 @@ public class Control implements ApplicationListener, Loadable{
 
     @Override
     public void update(){
+        //TODO find out why this happens on Android
+        if(assets == null) return;
+
         saves.update();
+
         //update and load any requested assets
-        if(assets != null){
-            assets.update();
-        }
+        assets.update();
 
         input.updateController();
 
diff --git a/core/src/io/anuke/mindustry/core/Platform.java b/core/src/io/anuke/mindustry/core/Platform.java
index 7ccb700499..55c57e82a4 100644
--- a/core/src/io/anuke/mindustry/core/Platform.java
+++ b/core/src/io/anuke/mindustry/core/Platform.java
@@ -2,6 +2,7 @@ package io.anuke.mindustry.core;
 
 import io.anuke.arc.*;
 import io.anuke.arc.Input.*;
+import io.anuke.arc.collection.*;
 import io.anuke.arc.files.*;
 import io.anuke.arc.function.*;
 import io.anuke.arc.math.*;
@@ -25,6 +26,14 @@ public interface Platform{
     /** Steam: Share a map on the workshop.*/
     default void publishMap(Map map){}
 
+    /** Steam: Return external workshop maps to be loaded.*/
+    default Array<FileHandle> getExternalMaps(){
+        return Array.with();
+    }
+
+    /** Steam: View a map listing on the workshop.*/
+    default void viewMapListing(Map map){}
+
     /** Steam: Open workshop for maps.*/
     default void openWorkshop(){}
 
diff --git a/core/src/io/anuke/mindustry/core/UI.java b/core/src/io/anuke/mindustry/core/UI.java
index 5e18483e11..1f5eb0f137 100644
--- a/core/src/io/anuke/mindustry/core/UI.java
+++ b/core/src/io/anuke/mindustry/core/UI.java
@@ -325,8 +325,9 @@ public class UI implements ApplicationListener, Loadable{
             cont.row();
             cont.addImage().width(300f).pad(2).height(4f).color(Color.scarlet);
             cont.row();
-            cont.add(text).pad(2f).growX().wrap();
-            buttons.addButton("$ok", this::hide).size(120, 50).pad(4);
+            cont.add(text).pad(2f).growX().wrap().get().setAlignment(Align.center);
+            cont.row();
+            cont.addButton("$ok", this::hide).size(120, 50).pad(4);
         }}.show();
     }
 
diff --git a/core/src/io/anuke/mindustry/editor/MapEditorDialog.java b/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
index f73d3909bf..016515c1b0 100644
--- a/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
+++ b/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
@@ -154,10 +154,21 @@ public class MapEditorDialog extends Dialog implements Disposable{
         if(steam){
             menu.cont.addImageTextButton("$editor.publish.workshop", Icon.linkSmall, () -> {
                 Map map = save();
-                if(map != null){
-                    platform.publishMap(map);
+
+                if(map == null) return;
+
+                if(map.tags.get("description", "").length() < 4){
+                    ui.showErrorMessage("$editor.nodescription");
+                    return;
                 }
-            }).padTop(-3).size(swidth * 2f + 10, 60f);
+
+                if(!Gamemode.survival.valid(map)){
+                    ui.showErrorMessage("$map.nospawn");
+                    return;
+                }
+
+                platform.publishMap(map);
+            }).padTop(-3).size(swidth * 2f + 10, 60f).update(b -> b.setText(editor.getTags().containsKey("steamid") ? "$view.workshop" : "$editor.publish.workshop"));
 
             menu.cont.row();
         }
@@ -276,7 +287,7 @@ public class MapEditorDialog extends Dialog implements Disposable{
         });
     }
 
-    private Map save(){
+    public Map save(){
         String name = editor.getTags().get("name", "").trim();
         editor.getTags().put("rules", JsonIO.write(state.rules));
         editor.getTags().remove("width");
diff --git a/core/src/io/anuke/mindustry/editor/MapLoadDialog.java b/core/src/io/anuke/mindustry/editor/MapLoadDialog.java
index 6cfaaeca7a..c0567a724c 100644
--- a/core/src/io/anuke/mindustry/editor/MapLoadDialog.java
+++ b/core/src/io/anuke/mindustry/editor/MapLoadDialog.java
@@ -54,7 +54,7 @@ public class MapLoadDialog extends FloatingDialog{
         for(Map map : maps.all()){
 
             TextButton button = new TextButton(map.name(), Styles.togglet);
-            button.add(new BorderImage(map.texture, 2f).setScaling(Scaling.fit)).size(16 * 4f);
+            button.add(new BorderImage(map.safeTexture(), 2f).setScaling(Scaling.fit)).size(16 * 4f);
             button.getCells().reverse();
             button.clicked(() -> selected = map);
             button.getLabelCell().grow().left().padLeft(5f);
diff --git a/core/src/io/anuke/mindustry/entities/EntityGroup.java b/core/src/io/anuke/mindustry/entities/EntityGroup.java
index ff48a1ad2e..07057d0436 100644
--- a/core/src/io/anuke/mindustry/entities/EntityGroup.java
+++ b/core/src/io/anuke/mindustry/entities/EntityGroup.java
@@ -18,6 +18,8 @@ public class EntityGroup<T extends Entity>{
     private final Array<T> entityArray = new Array<>(false, 32);
     private final Array<T> entitiesToRemove = new Array<>(false, 32);
     private final Array<T> entitiesToAdd = new Array<>(false, 32);
+    private final Array<T> intersectArray = new Array<>();
+    private final Rectangle intersectRect = new Rectangle();
     private IntMap<T> map;
     private QuadTree tree;
     private Consumer<T> removeListener;
@@ -161,6 +163,15 @@ public class EntityGroup<T extends Entity>{
         tree().getIntersect(out, x, y, width, height);
     }
 
+    @SuppressWarnings("unchecked")
+    public Array<T> intersect(float x, float y, float width, float height){
+        intersectArray.clear();
+        //don't waste time for empty groups
+        if(isEmpty()) return intersectArray;
+        tree().getIntersect(intersectArray, intersectRect.set(x, y, width, height));
+        return intersectArray;
+    }
+
     public QuadTree tree(){
         if(!useTree) throw new RuntimeException("This group does not support quadtrees! Enable quadtrees when creating it.");
         return tree;
diff --git a/core/src/io/anuke/mindustry/entities/effect/Lightning.java b/core/src/io/anuke/mindustry/entities/effect/Lightning.java
index db8eeb5b1b..83dedb94be 100644
--- a/core/src/io/anuke/mindustry/entities/effect/Lightning.java
+++ b/core/src/io/anuke/mindustry/entities/effect/Lightning.java
@@ -47,7 +47,7 @@ public class Lightning extends TimedEntity implements DrawTrait, TimeTrait{
     }
 
     /** Do not invoke! */
-    @Remote(called = Loc.server)
+    @Remote(called = Loc.server, unreliable = true)
     public static void createLighting(int seed, Team team, Color color, float damage, float x, float y, float rotation, int length){
 
         Lightning l = Pools.obtain(Lightning.class, Lightning::new);
diff --git a/core/src/io/anuke/mindustry/entities/type/BaseUnit.java b/core/src/io/anuke/mindustry/entities/type/BaseUnit.java
index 4a9d8695f3..9d3a92a170 100644
--- a/core/src/io/anuke/mindustry/entities/type/BaseUnit.java
+++ b/core/src/io/anuke/mindustry/entities/type/BaseUnit.java
@@ -16,6 +16,7 @@ import io.anuke.mindustry.game.*;
 import io.anuke.mindustry.gen.*;
 import io.anuke.mindustry.type.*;
 import io.anuke.mindustry.world.*;
+import io.anuke.mindustry.world.blocks.*;
 import io.anuke.mindustry.world.blocks.defense.DeflectorWall.*;
 import io.anuke.mindustry.world.blocks.units.CommandCenter.*;
 import io.anuke.mindustry.world.blocks.units.UnitFactory.*;
@@ -273,7 +274,7 @@ public abstract class BaseUnit extends Unit implements ShooterTrait{
             return;
         }
 
-        if(!isFlying() && (world.tileWorld(x, y) != null && world.tileWorld(x, y).solid())){
+        if(!isFlying() && (world.tileWorld(x, y) != null && !(world.tileWorld(x, y).block() instanceof BuildBlock) && world.tileWorld(x, y).solid())){
             kill();
         }
 
diff --git a/core/src/io/anuke/mindustry/entities/type/Unit.java b/core/src/io/anuke/mindustry/entities/type/Unit.java
index 3dfd2e0364..63289f53e1 100644
--- a/core/src/io/anuke/mindustry/entities/type/Unit.java
+++ b/core/src/io/anuke/mindustry/entities/type/Unit.java
@@ -2,6 +2,7 @@ package io.anuke.mindustry.entities.type;
 
 import io.anuke.annotations.Annotations.*;
 import io.anuke.arc.*;
+import io.anuke.arc.collection.*;
 import io.anuke.arc.graphics.*;
 import io.anuke.arc.graphics.g2d.*;
 import io.anuke.arc.math.*;
@@ -212,15 +213,25 @@ public abstract class Unit extends DestructibleEntity implements SaveTrait, Targ
         float radScl = 1.5f;
         float fsize = getSize() / radScl;
         moveVector.setZero();
+        float cx = x - fsize/2f, cy = y - fsize/2f;
 
-        Units.nearby(x - fsize/2f, y - fsize/2f, fsize, fsize, en -> {
-            if(en == this || en.isFlying() != isFlying()) return;
+        for(Team team : Team.all){
+            avoid(unitGroups[team.ordinal()].intersect(cx, cy, fsize, fsize));
+        }
+
+        avoid(playerGroup.intersect(cx, cy, fsize, fsize));
+        velocity.add(moveVector.x / mass() * Time.delta(), moveVector.y / mass() * Time.delta());
+    }
+
+    private void avoid(Array<? extends Unit> arr){
+        float radScl = 1.5f;
+
+        for(Unit en : arr){
+            if(en.isFlying() != isFlying()) continue;
             float dst = dst(en);
             float scl = Mathf.clamp(1f - dst / (getSize()/(radScl*2f) + en.getSize()/(radScl*2f)));
             moveVector.add(Tmp.v1.set((x - en.x) * scl, (y - en.y) * scl).limit(0.4f));
-        });
-
-        velocity.add(moveVector.x / mass() * Time.delta(), moveVector.y / mass() * Time.delta());
+        }
     }
 
     public @Nullable TileEntity getClosestCore(){
diff --git a/core/src/io/anuke/mindustry/entities/units/Statuses.java b/core/src/io/anuke/mindustry/entities/units/Statuses.java
index 62bcec4a2f..b96937bfcb 100644
--- a/core/src/io/anuke/mindustry/entities/units/Statuses.java
+++ b/core/src/io/anuke/mindustry/entities/units/Statuses.java
@@ -32,12 +32,12 @@ public class Statuses implements Saveable{
         if(statuses.size > 0){
             //check for opposite effects
             for(StatusEntry entry : statuses){
-                if(entry.effect == null) continue;
                 //extend effect
                 if(entry.effect == effect){
                     entry.time = Math.max(entry.time, duration);
                     return;
                 }else if(entry.effect.reactsWith(effect)){ //find opposite
+                    globalResult.effect = entry.effect;
                     entry.effect.getTransition(unit, effect, entry.time, duration, globalResult);
                     entry.time = globalResult.time;
 
@@ -84,10 +84,6 @@ public class Statuses implements Saveable{
         removals.clear();
 
         for(StatusEntry entry : statuses){
-            if(entry.effect == null){
-                removals.add(entry);
-                continue;
-            }
             entry.time = Math.max(entry.time - Time.delta(), 0);
             applied.set(entry.effect.id);
 
diff --git a/core/src/io/anuke/mindustry/game/Tutorial.java b/core/src/io/anuke/mindustry/game/Tutorial.java
index d2534c151b..8eb8e9e054 100644
--- a/core/src/io/anuke/mindustry/game/Tutorial.java
+++ b/core/src/io/anuke/mindustry/game/Tutorial.java
@@ -187,7 +187,7 @@ public class Tutorial{
             }
         },;
 
-        protected final String line = Core.bundle.has("tutorial." + name() + ".mobile") && mobile ? "tutorial." + name() + ".mobile" : "tutorial." + name();
+        protected String line = "";
         protected final Function<String, String> text;
         protected Array<String> sentences;
         protected final BooleanProvider done;
@@ -203,7 +203,10 @@ public class Tutorial{
 
         /** displayed tutorial stage text.*/
         public String text(){
-            if(sentences == null) this.sentences = Array.select(Core.bundle.get(line).split("\n"), s -> !s.isEmpty());
+            if(sentences == null){
+               this.line = Core.bundle.has("tutorial." + name() + ".mobile") && mobile ? "tutorial." + name() + ".mobile" : "tutorial." + name();
+               this.sentences = Array.select(Core.bundle.get(line).split("\n"), s -> !s.isEmpty());
+            }
             String line = sentences.get(control.tutorial.sentence);
             return line.contains("{") ? text.get(line) : line;
         }
diff --git a/core/src/io/anuke/mindustry/input/InputHandler.java b/core/src/io/anuke/mindustry/input/InputHandler.java
index e4e8dadfc7..3ea3302194 100644
--- a/core/src/io/anuke/mindustry/input/InputHandler.java
+++ b/core/src/io/anuke/mindustry/input/InputHandler.java
@@ -58,7 +58,7 @@ public abstract class InputHandler implements InputProcessor{
 
     @Remote(targets = Loc.both, forward = true, called = Loc.server)
     public static void transferInventory(Player player, Tile tile){
-        if(!player.timer.get(Player.timerTransfer, 40)) return;
+        if(player == null || player.timer == null || !player.timer.get(Player.timerTransfer, 40)) return;
         if(net.server() && (player.item().amount <= 0 || player.isTransferring|| !tile.interactable(player.getTeam()))){
             throw new ValidateException(player, "Player cannot transfer an item.");
         }
diff --git a/core/src/io/anuke/mindustry/input/MobileInput.java b/core/src/io/anuke/mindustry/input/MobileInput.java
index 14f86e360f..7564325e1c 100644
--- a/core/src/io/anuke/mindustry/input/MobileInput.java
+++ b/core/src/io/anuke/mindustry/input/MobileInput.java
@@ -67,33 +67,7 @@ public class MobileInput extends InputHandler implements GestureListener{
 
     public MobileInput(){
         Events.on(ClientLoadEvent.class, e -> {
-            GestureDetector dec = new GestureDetector(20, 0.5f, 0.4f, 0.15f, this){
-                boolean clearMouse = false;
-
-                @Override
-                public boolean touchDown(int x, int y, int pointer, KeyCode button){
-                    if(Core.scene.hasMouse(x, y)){
-                        clearMouse = true;
-                        return false;
-                    }
-                    return super.touchDown(x, y, pointer, button);
-                }
-
-                @Override
-                public boolean touchDragged(int x, int y, int pointer){
-                    if(!clearMouse){
-                        return super.touchDragged(x, y, pointer);
-                    }
-                    return false;
-                }
-
-                @Override
-                public boolean touchUp(int x, int y, int pointer, KeyCode button){
-                    clearMouse = false;
-                    return super.touchUp(x, y, pointer, button);
-                }
-            };
-            Core.input.getInputProcessors().insert(0, dec);
+            Core.input.getInputProcessors().add(new GestureDetector(20, 0.5f, 0.4f, 0.15f, this));
         });
     }
 
diff --git a/core/src/io/anuke/mindustry/maps/Map.java b/core/src/io/anuke/mindustry/maps/Map.java
index 92789727dc..94fa841f08 100644
--- a/core/src/io/anuke/mindustry/maps/Map.java
+++ b/core/src/io/anuke/mindustry/maps/Map.java
@@ -20,6 +20,8 @@ public class Map implements Comparable<Map>{
     public final FileHandle file;
     /** Format version. */
     public final int version;
+    /** Whether this map is managed, e.g. downloaded from the Steam workshop.*/
+    public boolean workshop;
     /** Map width/height, shorts. */
     public int width, height;
     /** Preview texture. */
@@ -57,8 +59,12 @@ public class Map implements Comparable<Map>{
         return Core.settings.getInt("hiscore" + file.nameWithoutExtension(), 0);
     }
 
+    public Texture safeTexture(){
+        return texture == null ? Core.assets.get("sprites/error.png") : texture;
+    }
+
     public FileHandle previewFile(){
-        return Vars.mapPreviewDirectory.child(file.nameWithoutExtension() + ".png");
+        return Vars.mapPreviewDirectory.child((workshop ? file.parent().name() : file.nameWithoutExtension()) + ".png");
     }
 
     public FileHandle cacheFile(){
@@ -127,6 +133,8 @@ public class Map implements Comparable<Map>{
 
     @Override
     public int compareTo(Map map){
+        int work = -Boolean.compare(workshop, map.workshop);
+        if(work != 0) return work;
         int type = -Boolean.compare(custom, map.custom);
         if(type != 0) return type;
         int modes = Boolean.compare(Gamemode.pvp.valid(this), Gamemode.pvp.valid(map));
diff --git a/core/src/io/anuke/mindustry/maps/MapPreviewLoader.java b/core/src/io/anuke/mindustry/maps/MapPreviewLoader.java
index 262f3dc45f..da229addce 100644
--- a/core/src/io/anuke/mindustry/maps/MapPreviewLoader.java
+++ b/core/src/io/anuke/mindustry/maps/MapPreviewLoader.java
@@ -6,6 +6,7 @@ import io.anuke.arc.assets.loaders.resolvers.*;
 import io.anuke.arc.collection.*;
 import io.anuke.arc.files.*;
 import io.anuke.arc.graphics.*;
+import io.anuke.arc.util.*;
 import io.anuke.mindustry.*;
 import io.anuke.mindustry.game.*;
 
@@ -20,7 +21,7 @@ public class MapPreviewLoader extends TextureLoader{
         try{
             super.loadAsync(manager, fileName, file.sibling(file.nameWithoutExtension()), parameter);
         }catch(Exception e){
-            e.printStackTrace();
+            Log.err(e);
             MapPreviewParameter param = (MapPreviewParameter)parameter;
             Vars.maps.queueNewPreview(param.map);
         }
@@ -31,11 +32,11 @@ public class MapPreviewLoader extends TextureLoader{
         try{
             return super.loadSync(manager, fileName, file, parameter);
         }catch(Throwable e){
-            e.printStackTrace();
+            Log.err(e);
             try{
                 return new Texture(file);
             }catch(Throwable e2){
-                e2.printStackTrace();
+                Log.err(e2);
                 return new Texture("sprites/error.png");
             }
         }
diff --git a/core/src/io/anuke/mindustry/maps/Maps.java b/core/src/io/anuke/mindustry/maps/Maps.java
index 7336e63114..395ceafec6 100644
--- a/core/src/io/anuke/mindustry/maps/Maps.java
+++ b/core/src/io/anuke/mindustry/maps/Maps.java
@@ -81,6 +81,7 @@ public class Maps{
 
     /** Load all maps. Should be called at application start. */
     public void load(){
+        //defaults; must work
         try{
             for(String name : defaultMapNames){
                 FileHandle file = Core.files.internal("maps/" + name + "." + mapExtension);
@@ -90,7 +91,27 @@ public class Maps{
             throw new RuntimeException(e);
         }
 
-        loadCustomMaps();
+        //custom
+        for(FileHandle file : customMapDirectory.list()){
+            try{
+                if(file.extension().equalsIgnoreCase(mapExtension)){
+                    loadMap(file, true);
+                }
+            }catch(Exception e){
+                Log.err("Failed to load custom map file '{0}'!", file);
+                Log.err(e);
+            }
+        }
+
+        //workshop
+        for(FileHandle file : platform.getExternalMaps()){
+            try{
+                loadMap(file, false).workshop = true;
+            }catch(Exception e){
+                Log.err("Failed to load workshop map file '{0}'!", file);
+                Log.err(e);
+            }
+        }
     }
 
     public void reload(){
@@ -174,14 +195,6 @@ public class Maps{
         }
     }
 
-    /** Creates a legacy map by converting it to a non-legacy map and pasting it in a temp directory.
-     * Should be followed up by {@link #importMap(FileHandle)} .*/
-    public Map makeLegacyMap(FileHandle file) throws IOException{
-        FileHandle dst = tmpDirectory.child("conversion_map." + mapExtension);
-        LegacyMapIO.convertMap(file, dst);
-        return MapIO.createMap(dst, true);
-    }
-
     /** Import a map, then save it. This updates all values and stored data necessary. */
     public void importMap(FileHandle file) throws IOException{
         FileHandle dest = findFile();
@@ -203,7 +216,6 @@ public class Maps{
         if(error[0] != null){
             throw new IOException(error[0]);
         }
-
     }
 
     /** Attempts to run the following code;
@@ -314,7 +326,7 @@ public class Maps{
         for(Map map : maps){
             //try to load preview
             if(map.previewFile().exists()){
-                //this may fail, but calls createNewPreview
+                //this may fail, but calls queueNewPreview
                 Core.assets.load(new AssetDescriptor<>(map.previewFile().path() + "." + mapExtension, Texture.class, new MapPreviewParameter(map))).loaded = t -> map.texture = (Texture)t;
 
                 try{
@@ -332,7 +344,7 @@ public class Maps{
     private void createAllPreviews(){
         Core.app.post(() -> {
             for(Map map : previewList){
-                createNewPreview(map, e -> Core.app.post(() -> map.texture = new Texture("sprites/error.png")));
+                createNewPreview(map, e -> Core.app.post(() -> map.texture = Core.assets.get("sprites/error.png")));
             }
             previewList.clear();
         });
@@ -407,16 +419,4 @@ public class Maps{
         return map;
     }
 
-    private void loadCustomMaps(){
-        for(FileHandle file : customMapDirectory.list()){
-            try{
-                if(file.extension().equalsIgnoreCase(mapExtension)){
-                    loadMap(file, true);
-                }
-            }catch(Exception e){
-                Log.err("Failed to load custom map file '{0}'!", file);
-                Log.err(e);
-            }
-        }
-    }
 }
\ No newline at end of file
diff --git a/core/src/io/anuke/mindustry/net/CrashSender.java b/core/src/io/anuke/mindustry/net/CrashSender.java
index 6970e9521b..cc29071615 100644
--- a/core/src/io/anuke/mindustry/net/CrashSender.java
+++ b/core/src/io/anuke/mindustry/net/CrashSender.java
@@ -25,8 +25,8 @@ public class CrashSender{
         try{
             exception.printStackTrace();
 
-            //don't create crash logs for me (anuke) or custom builds, as it's expected
-            if(System.getProperty("user.name").equals("anuke") || Version.build == -1) return;
+            //don't create crash logs for custom builds, as it's expected
+            if(Version.build == -1) return;
 
             //attempt to load version regardless
             if(Version.number == 0){
diff --git a/core/src/io/anuke/mindustry/net/Net.java b/core/src/io/anuke/mindustry/net/Net.java
index 66482ab729..eddd19c1e6 100644
--- a/core/src/io/anuke/mindustry/net/Net.java
+++ b/core/src/io/anuke/mindustry/net/Net.java
@@ -46,7 +46,9 @@ public class Net{
                 t = t.getCause();
             }
 
-            String error = t.getMessage() == null ? "" : t.getMessage().toLowerCase();
+            String baseError = Strings.getFinalMesage(e);
+
+            String error = baseError == null ? "" : baseError.toLowerCase();
             String type = t.getClass().toString().toLowerCase();
             boolean isError = false;
 
diff --git a/core/src/io/anuke/mindustry/plugin/Plugins.java b/core/src/io/anuke/mindustry/plugin/Plugins.java
index dcd7d8501b..946ec00f4f 100644
--- a/core/src/io/anuke/mindustry/plugin/Plugins.java
+++ b/core/src/io/anuke/mindustry/plugin/Plugins.java
@@ -67,7 +67,7 @@ public class Plugins{
         URLClassLoader classLoader = new URLClassLoader(new URL[]{jar.file().toURI().toURL()}, ClassLoader.getSystemClassLoader());
         Class<?> main = classLoader.loadClass(meta.main);
         metas.put(main, meta);
-        return new LoadedPlugin(jar, zip, (Plugin)main.newInstance(), meta);
+        return new LoadedPlugin(jar, zip, (Plugin)main.getDeclaredConstructor().newInstance(), meta);
     }
 
     /** Represents a plugin that has been loaded from a jar file.*/
diff --git a/core/src/io/anuke/mindustry/type/StatusEffect.java b/core/src/io/anuke/mindustry/type/StatusEffect.java
index 19b662d76c..ae74288758 100644
--- a/core/src/io/anuke/mindustry/type/StatusEffect.java
+++ b/core/src/io/anuke/mindustry/type/StatusEffect.java
@@ -5,7 +5,7 @@ import io.anuke.arc.collection.ObjectMap;
 import io.anuke.arc.function.Supplier;
 import io.anuke.arc.graphics.Color;
 import io.anuke.arc.math.Mathf;
-import io.anuke.arc.util.Time;
+import io.anuke.arc.util.*;
 import io.anuke.mindustry.content.Fx;
 import io.anuke.mindustry.entities.Effects;
 import io.anuke.mindustry.entities.Effects.Effect;
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/CustomGameDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/CustomGameDialog.java
index efbdfa65df..74eb693fec 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/CustomGameDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/CustomGameDialog.java
@@ -48,7 +48,7 @@ public class CustomGameDialog extends FloatingDialog{
                 maps.row();
             }
 
-            ImageButton image = new ImageButton(new TextureRegion(map.texture), Styles.cleari);
+            ImageButton image = new ImageButton(new TextureRegion(map.safeTexture()), Styles.cleari);
             image.margin(5);
             image.top();
 
@@ -72,7 +72,7 @@ public class CustomGameDialog extends FloatingDialog{
             image.add(img).size(images);
 
 
-            BorderImage border = new BorderImage(map.texture, 3f);
+            BorderImage border = new BorderImage(map.safeTexture(), 3f);
             border.setScaling(Scaling.fit);
             image.replaceImage(border);
 
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/MapPlayDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/MapPlayDialog.java
index c55b4f6fb8..b3da2b2f3f 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/MapPlayDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/MapPlayDialog.java
@@ -69,7 +69,7 @@ public class MapPlayDialog extends FloatingDialog{
         cont.row();
         cont.addImageTextButton("$customize", Icon.toolsSmall, () -> dialog.show(rules, () -> rules = map.applyRules(selectedGamemode))).width(230);
         cont.row();
-        cont.add(new BorderImage(map.texture, 3f)).size(mobile && !Core.graphics.isPortrait() ? 150f : 250f).get().setScaling(Scaling.fit);
+        cont.add(new BorderImage(map.safeTexture(), 3f)).size(mobile && !Core.graphics.isPortrait() ? 150f : 250f).get().setScaling(Scaling.fit);
         //only maps with survival are valid for high scores
         if(Gamemode.survival.valid(map)){
             cont.row();
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/MapsDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/MapsDialog.java
index 956c76bbd5..c6b2dabe60 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/MapsDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/MapsDialog.java
@@ -4,7 +4,6 @@ import io.anuke.arc.*;
 import io.anuke.arc.graphics.*;
 import io.anuke.arc.input.*;
 import io.anuke.arc.math.*;
-import io.anuke.arc.scene.event.*;
 import io.anuke.arc.scene.ui.*;
 import io.anuke.arc.scene.ui.layout.*;
 import io.anuke.arc.util.*;
@@ -53,12 +52,18 @@ public class MapsDialog extends FloatingDialog{
 
         buttons.addImageTextButton("$editor.newmap", Icon.add, () -> {
             ui.showTextInput("$editor.newmap", "$name", "", text -> {
-                ui.loadAnd(() -> {
+                Runnable show = () -> ui.loadAnd(() -> {
                     hide();
                     ui.editor.show();
                     ui.editor.editor.getTags().put("name", text);
                     Events.fire(new MapMakeEvent());
                 });
+
+                if(maps.byName(text) != null){
+                    ui.showErrorMessage("$editor.exists");
+                }else{
+                    show.run();
+                }
             });
         }).size(210f, 64f);
 
@@ -137,9 +142,9 @@ public class MapsDialog extends FloatingDialog{
             button.row();
             button.addImage().growX().pad(4).color(Pal.gray);
             button.row();
-            button.stack(new Image(map.texture).setScaling(Scaling.fit), new BorderImage(map.texture).setScaling(Scaling.fit)).size(mapsize - 20f);
+            button.stack(new Image(map.safeTexture()).setScaling(Scaling.fit), new BorderImage(map.safeTexture()).setScaling(Scaling.fit)).size(mapsize - 20f);
             button.row();
-            button.add(map.custom ? "$custom" : "$builtin").color(Color.gray).padTop(3);
+            button.add(map.custom ? "$custom" : map.workshop ? "$workshop" : "$builtin").color(Color.gray).padTop(3);
 
             i++;
         }
@@ -160,7 +165,7 @@ public class MapsDialog extends FloatingDialog{
         float mapsize = Core.graphics.isPortrait() ? 160f : 300f;
         Table table = dialog.cont;
 
-        table.stack(new Image(map.texture).setScaling(Scaling.fit), new BorderImage(map.texture).setScaling(Scaling.fit)).size(mapsize);
+        table.stack(new Image(map.safeTexture()).setScaling(Scaling.fit), new BorderImage(map.safeTexture()).setScaling(Scaling.fit)).size(mapsize);
 
         table.table(Styles.black, desc -> {
             desc.top();
@@ -199,13 +204,17 @@ public class MapsDialog extends FloatingDialog{
             }
         }).fillX().height(54f).marginLeft(10);
 
-        table.addImageTextButton("$delete", Icon.trash16Small, () -> {
-            ui.showConfirm("$confirm", Core.bundle.format("map.delete", map.name()), () -> {
-                maps.removeMap(map);
-                dialog.hide();
-                setup();
-            });
-        }).fillX().height(54f).marginLeft(10).disabled(!map.custom).touchable(map.custom ? Touchable.enabled : Touchable.disabled);
+        table.addImageTextButton(map.workshop ? "$view.workshop" : "$delete", map.workshop ? Icon.linkSmall : Icon.trash16Small, () -> {
+            if(map.workshop){
+                platform.viewMapListing(map);
+            }else{
+                ui.showConfirm("$confirm", Core.bundle.format("map.delete", map.name()), () -> {
+                    maps.removeMap(map);
+                    dialog.hide();
+                    setup();
+                });
+            }
+        }).fillX().height(54f).marginLeft(10).disabled(!map.workshop && !map.custom);
 
         dialog.show();
     }
diff --git a/core/src/io/anuke/mindustry/ui/fragments/BlockInventoryFragment.java b/core/src/io/anuke/mindustry/ui/fragments/BlockInventoryFragment.java
index fc80e13ac8..0f1b31c3ad 100644
--- a/core/src/io/anuke/mindustry/ui/fragments/BlockInventoryFragment.java
+++ b/core/src/io/anuke/mindustry/ui/fragments/BlockInventoryFragment.java
@@ -32,7 +32,7 @@ import static io.anuke.mindustry.Vars.*;
 public class BlockInventoryFragment extends Fragment{
     private final static float holdWithdraw = 20f;
 
-    private Table table;
+    private Table table = new Table();
     private Tile tile;
     private float holdTime = 0f;
     private boolean holding;
@@ -52,7 +52,6 @@ public class BlockInventoryFragment extends Fragment{
 
     @Override
     public void build(Group parent){
-        table = new Table();
         table.setName("inventory");
         table.setTransform(true);
         parent.setTransform(true);
diff --git a/core/src/io/anuke/mindustry/ui/fragments/HudFragment.java b/core/src/io/anuke/mindustry/ui/fragments/HudFragment.java
index 37c48d27a0..5196a97119 100644
--- a/core/src/io/anuke/mindustry/ui/fragments/HudFragment.java
+++ b/core/src/io/anuke/mindustry/ui/fragments/HudFragment.java
@@ -572,9 +572,6 @@ public class HudFragment extends Fragment{
         }
 
         shown = !shown;
-        if(flip != null){
-            flip.getParent().act(Core.graphics.getDeltaTime());
-        }
     }
 
     private void addWaveTable(Button table){
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/CooledTurret.java b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/CooledTurret.java
index 7ed149ba2e..86f15dce93 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/CooledTurret.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/CooledTurret.java
@@ -55,7 +55,7 @@ public class CooledTurret extends Turret{
         Liquid liquid = entity.liquids.current();
 
         float used = Math.min(Math.min(entity.liquids.get(liquid), maxUsed * Time.delta()), Math.max(0, ((reload - entity.reload) / coolantMultiplier) / liquid.heatCapacity)) * baseReloadSpeed(tile);
-        entity.reload += (used * liquid.heatCapacity) / liquid.heatCapacity;
+        entity.reload += used * liquid.heatCapacity * coolantMultiplier;
         entity.liquids.remove(liquid, used);
 
         if(Mathf.chance(0.06 * used)){
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
index ba3e8dda79..948161dfd1 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
@@ -100,7 +100,7 @@ public abstract class Turret extends Block{
 
         stats.add(BlockStat.shootRange, range / tilesize, StatUnit.blocks);
         stats.add(BlockStat.inaccuracy, (int)inaccuracy, StatUnit.degrees);
-        stats.add(BlockStat.reload, 60f / reload * shots, StatUnit.none);
+        stats.add(BlockStat.reload, 60f / reload, StatUnit.none);
         stats.add(BlockStat.shots, shots, StatUnit.none);
         stats.add(BlockStat.targetsAir, targetAir);
         stats.add(BlockStat.targetsGround, targetGround);
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java b/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
index f0cac836d6..782d94fdda 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
@@ -24,7 +24,6 @@ public class ItemBridge extends Block{
     protected int timerTransport = timers++;
     protected int range;
     protected float transportTime = 2f;
-    protected IntArray removals = new IntArray();
     protected TextureRegion endRegion, bridgeRegion, arrowRegion;
 
     private static int lastPlaced = Pos.invalid;
@@ -162,21 +161,15 @@ public class ItemBridge extends Block{
         entity.time += entity.cycleSpeed * entity.delta();
         entity.time2 += (entity.cycleSpeed - 1f) * entity.delta();
 
-        removals.clear();
-
         IntSetIterator it = entity.incoming.iterator();
-
         while(it.hasNext){
             int i = it.next();
             Tile other = world.tile(i);
             if(!linkValid(tile, other, false)){
-                removals.add(i);
+                it.remove();
             }
         }
 
-        for(int j = 0; j < removals.size; j++)
-            entity.incoming.remove(removals.get(j));
-
         Tile other = world.tile(entity.link);
         if(!linkValid(tile, other)){
             entity.link = Pos.invalid;
@@ -184,7 +177,7 @@ public class ItemBridge extends Block{
             entity.uptime = 0f;
         }else{
 
-            if(entity.cons.valid()){
+            if(entity.cons.valid() && (!hasPower || Mathf.isZero(1f - entity.power.satisfaction))){
                 entity.uptime = Mathf.lerpDelta(entity.uptime, 1f, 0.04f);
             }else{
                 entity.uptime = Mathf.lerpDelta(entity.uptime, 0f, 0.02f);
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java b/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
index 2bce0d1904..60822e9f08 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
@@ -12,7 +12,6 @@ import io.anuke.mindustry.content.*;
 import io.anuke.mindustry.entities.*;
 import io.anuke.mindustry.entities.Effects.*;
 import io.anuke.mindustry.entities.type.*;
-import io.anuke.mindustry.entities.type.Bullet;
 import io.anuke.mindustry.gen.*;
 import io.anuke.mindustry.graphics.*;
 import io.anuke.mindustry.type.*;
@@ -120,26 +119,28 @@ public class MassDriver extends Block{
 
             if(
                 tile.entity.items.total() >= minDistribute && //must shoot minimum amount of items
-                link.block().itemCapacity - link.entity.items.total() >= minDistribute && //must have minimum amount of space
-                entity.reload <= 0.0001f //must have reloaded
+                link.block().itemCapacity - link.entity.items.total() >= minDistribute //must have minimum amount of space
             ){
                 MassDriverEntity other = link.entity();
                 other.waitingShooters.add(tile);
 
-                //align to target location
-                entity.rotation = Mathf.slerpDelta(entity.rotation, targetRotation, rotateSpeed * entity.power.satisfaction);
+                if(entity.reload <= 0.0001f){
 
-                //fire when it's the first in the queue and angles are ready.
-                if(other.currentShooter() == tile &&
+                    //align to target location
+                    entity.rotation = Mathf.slerpDelta(entity.rotation, targetRotation, rotateSpeed * entity.power.satisfaction);
+
+                    //fire when it's the first in the queue and angles are ready.
+                    if(other.currentShooter() == tile &&
                     other.state == DriverState.accepting &&
                     Angles.near(entity.rotation, targetRotation, 2f) && Angles.near(other.rotation, targetRotation + 180f, 2f)){
-                    //actually fire
-                    fire(tile, link);
-                    //remove waiting shooters, it's done firing
-                    other.waitingShooters.remove(tile);
-                    //set both states to idle
-                    entity.state = DriverState.idle;
-                    other.state = DriverState.idle;
+                        //actually fire
+                        fire(tile, link);
+                        //remove waiting shooters, it's done firing
+                        other.waitingShooters.remove(tile);
+                        //set both states to idle
+                        entity.state = DriverState.idle;
+                        other.state = DriverState.idle;
+                    }
                 }
             }
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/Router.java b/core/src/io/anuke/mindustry/world/blocks/distribution/Router.java
index 382a5dd470..bd92126717 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/Router.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/Router.java
@@ -2,6 +2,7 @@ package io.anuke.mindustry.world.blocks.distribution;
 
 import io.anuke.arc.collection.Array;
 import io.anuke.arc.util.Time;
+import io.anuke.mindustry.content.*;
 import io.anuke.mindustry.entities.type.TileEntity;
 import io.anuke.mindustry.type.Item;
 import io.anuke.mindustry.world.*;
@@ -63,7 +64,7 @@ public class Router extends Block{
         for(int i = 0; i < proximity.size; i++){
             Tile other = proximity.get((i + counter) % proximity.size);
             if(set) tile.rotation((byte)((tile.rotation() + 1) % proximity.size));
-            if(other == from) continue;
+            if(other == from && from.block() == Blocks.overflowGate) continue;
             if(other.block().acceptItem(item, other, Edges.getFacingEdge(tile, other))){
                 return other;
             }
diff --git a/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java b/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
index 428697d853..eb76325965 100644
--- a/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
+++ b/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
@@ -127,6 +127,13 @@ public class GenericCrafter extends Block{
         }
     }
 
+    @Override
+    public boolean outputsItems(){
+        return outputItem != null;
+    }
+
+
+
     @Override
     public boolean canProduce(Tile tile){
         if(outputItem != null && tile.entity.items.get(outputItem.item) >= itemCapacity){
diff --git a/core/src/io/anuke/mindustry/world/blocks/storage/CoreBlock.java b/core/src/io/anuke/mindustry/world/blocks/storage/CoreBlock.java
index 5cafa70f57..ec7cd5f616 100644
--- a/core/src/io/anuke/mindustry/world/blocks/storage/CoreBlock.java
+++ b/core/src/io/anuke/mindustry/world/blocks/storage/CoreBlock.java
@@ -97,8 +97,10 @@ public class CoreBlock extends StorageBlock{
             entity.storageCapacity += other.block().itemCapacity + other.entity.proximity().sum(e -> isContainer(e) ? e.block().itemCapacity : 0);
         }
 
-        for(Item item : content.items()){
-            entity.items.set(item, Math.min(entity.items.get(item), entity.storageCapacity));
+        if(!world.isGenerating()){
+            for(Item item : content.items()){
+                entity.items.set(item, Math.min(entity.items.get(item), entity.storageCapacity));
+            }
         }
 
         for(Tile other : state.teams.get(tile.getTeam()).cores){
diff --git a/core/src/io/anuke/mindustry/world/blocks/storage/LaunchPad.java b/core/src/io/anuke/mindustry/world/blocks/storage/LaunchPad.java
index d432944ea4..0e8d0fc7db 100644
--- a/core/src/io/anuke/mindustry/world/blocks/storage/LaunchPad.java
+++ b/core/src/io/anuke/mindustry/world/blocks/storage/LaunchPad.java
@@ -77,8 +77,9 @@ public class LaunchPad extends StorageBlock{
             for(Item item : Vars.content.items()){
                 Events.fire(Trigger.itemLaunch);
                 Effects.effect(Fx.padlaunch, tile);
-                data.addItem(item, entity.items.get(item));
-                entity.items.set(item, 0);
+                int used = Math.min(entity.items.get(item), itemCapacity);
+                data.addItem(item, used);
+                entity.items.remove(item, used);
             }
         }
     }
diff --git a/desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java b/desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java
index 59b665b31b..d215e28d9c 100644
--- a/desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java
+++ b/desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java
@@ -7,6 +7,7 @@ import io.anuke.arc.Files.*;
 import io.anuke.arc.backends.sdl.*;
 import io.anuke.arc.backends.sdl.jni.*;
 import io.anuke.arc.collection.*;
+import io.anuke.arc.files.*;
 import io.anuke.arc.function.*;
 import io.anuke.arc.input.*;
 import io.anuke.arc.math.*;
@@ -48,11 +49,12 @@ public class DesktopLauncher extends ClientLauncher{
                 setWindowIcon(FileType.Internal, "icons/icon_64.png");
             }});
         }catch(Throwable e){
-            DesktopLauncher.handleCrash(e);
+            handleCrash(e);
         }
     }
 
     public DesktopLauncher(String[] args){
+        Log.setUseColors(false);
         Version.init();
         boolean useSteam = Version.modifier.equals("steam");
         testMobile = Array.with(args).contains("-testMobile");
@@ -72,6 +74,16 @@ public class DesktopLauncher extends ClientLauncher{
 
         if(useSteam){
             if(showConsole){
+                StringBuilder base = new StringBuilder();
+                Log.setLogger(new LogHandler(){
+                      @Override
+                      public void print(String text, Object... args){
+                          String out = Log.format(text, false, args);
+
+                          base.append(out).append("\n");
+                      }
+                });
+
                 Events.on(ClientLoadEvent.class, event -> {
                     Label[] label = {null};
                     boolean[] visible = {false};
@@ -86,6 +98,7 @@ public class DesktopLauncher extends ClientLauncher{
                             t.toFront();
                         });
                         t.table(Styles.black3, f -> label[0] = f.add("").get()).visible(() -> visible[0]);
+                        label[0].getText().append(base);
                     });
 
                     Log.setLogger(new LogHandler(){
@@ -177,12 +190,23 @@ public class DesktopLauncher extends ClientLauncher{
         boolean fbgp = badGPU;
 
         CrashSender.send(e, file -> {
+            Throwable cause = Strings.getFinalCause(e);
             if(!fbgp){
-                dialog.accept(() -> message("A crash has occured. It has been saved in:\n" + file.getAbsolutePath() + "\n" + (e.getMessage() == null ? "" : "\n" + e.getMessage())));
+                dialog.accept(() -> message("A crash has occured. It has been saved in:\n" + file.getAbsolutePath() + "\n" + cause.getClass().getSimpleName().replace("Exception", "") + (cause.getMessage() == null ? "" : ":\n" + cause.getMessage())));
             }
         });
     }
 
+    @Override
+    public Array<FileHandle> getExternalMaps(){
+        return !steam ? super.getExternalMaps() : SVars.workshop.getMapFiles();
+    }
+
+    @Override
+    public void viewMapListing(Map map){
+        SVars.net.friends.activateGameOverlayToWebPage("steam://url/CommunityFilePage/" + map.file.parent().name());
+    }
+
     @Override
     public NetProvider getNet(){
         return steam ? SVars.net : new ArcNetImpl();
diff --git a/desktop/src/io/anuke/mindustry/desktop/steam/SWorkshop.java b/desktop/src/io/anuke/mindustry/desktop/steam/SWorkshop.java
index be4e1348d7..f233218fd1 100644
--- a/desktop/src/io/anuke/mindustry/desktop/steam/SWorkshop.java
+++ b/desktop/src/io/anuke/mindustry/desktop/steam/SWorkshop.java
@@ -4,6 +4,7 @@ import com.codedisaster.steamworks.*;
 import com.codedisaster.steamworks.SteamRemoteStorage.*;
 import com.codedisaster.steamworks.SteamUGC.*;
 import io.anuke.arc.*;
+import io.anuke.arc.collection.*;
 import io.anuke.arc.files.*;
 import io.anuke.arc.util.*;
 import io.anuke.mindustry.game.EventType.*;
@@ -18,8 +19,35 @@ public class SWorkshop implements SteamUGCCallback{
     public final SteamUGC ugc = new SteamUGC(this);
 
     private Map lastMap;
+    private Array<FileHandle> mapFiles;
+
+    public SWorkshop(){
+        int items = ugc.getNumSubscribedItems();
+        SteamPublishedFileID[] ids = new SteamPublishedFileID[items];
+        ItemInstallInfo info = new ItemInstallInfo();
+        ugc.getSubscribedItems(ids);
+        mapFiles = Array.with(ids).map(f -> {
+            ugc.getItemInstallInfo(f, info);
+            return new FileHandle(info.getFolder());
+        }).select(f -> f.list().length > 0).map(f -> f.list()[0]);
+
+        Log.info("Fetching {0} subscribed maps.", items);
+    }
+
+    public Array<FileHandle> getMapFiles(){
+        return mapFiles;
+    }
 
     public void publishMap(Map map){
+        if(map.tags.containsKey("steamid")){
+            Log.info("Map already published, redirecting to ID.");
+            SVars.net.friends.activateGameOverlayToWebPage("steam://url/CommunityFilePage/" + map.tags.get("steamid"));
+            return;
+        }
+
+        //update author name when publishing
+        map.tags.put("author", SVars.net.friends.getPersonaName());
+
         FloatingDialog dialog = new FloatingDialog("$confirm");
         dialog.setFillParent(false);
         dialog.cont.add("$map.publish.confirm").width(600f).wrap();
@@ -122,6 +150,12 @@ public class SWorkshop implements SteamUGCCallback{
             if(needsToAcceptWLA){
                 SVars.net.friends.activateGameOverlayToWebPage("https://steamcommunity.com/sharedfiles/workshoplegalagreement");
             }
+            ui.editor.editor.getTags().put("steamid", SteamNativeHandle.getNativeHandle(publishedFileID) + "");
+            try{
+                ui.editor.save();
+            }catch(Exception e){
+                Log.err(e);
+            }
             Events.fire(new MapPublishEvent());
         }else{
             ui.showErrorMessage(Core.bundle.format("map.publish.error ", result.name()));
diff --git a/gradle.properties b/gradle.properties
index f686bb2212..f47982435b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=1fda7fc4ed52e00fdbd6b9a5fab9af6add78dc63
+archash=818e26ff093403031fcf31d3424dacb9c646d4b6