diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index c6b07c292d..af56198f3e 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -13,9 +13,11 @@ text.editor.web=The web version does not support the editor!\nDownload the game
 text.web.unsupported=The web version does not support this feature! Download the game to use it.
 text.multiplayer.web=The web version of the game does not support multiplayer!\nUse the downloadable PC, Android or iOS versions.
 text.host.web=The web version does not support hosting games! Download the game to use this feature.
-text.gameover=The core was destroyed.
-text.highscore=[YELLOW]New highscore!
-text.lasted=You lasted until wave
+text.gameover=Your core has been destroyed
+text.sector.gameover=This sector has been lost. Re-deploy?
+text.sector.retry=Retry
+text.highscore=[accent]New highscore!
+text.wave.lasted=You lasted until wave [accent]{0}[].
 text.level.highscore=High Score: [accent]{0}
 text.level.delete.title=Confirm Delete
 text.map.delete=Are you sure you want to delete the map "[orange]{0}[]"?
diff --git a/core/src/io/anuke/mindustry/core/Control.java b/core/src/io/anuke/mindustry/core/Control.java
index 0a07a4c477..24ba15a6e2 100644
--- a/core/src/io/anuke/mindustry/core/Control.java
+++ b/core/src/io/anuke/mindustry/core/Control.java
@@ -144,12 +144,16 @@ public class Control extends Module{
         });
 
         Events.on(GameOverEvent.class, () -> {
-            Effects.shake(5, 6, Core.camera.position.x, Core.camera.position.y);
+            //delete saves for game-over sectors
+            if(world.getSector() != null && world.getSector().hasSave()){
+                world.getSector().getSave().delete();
+            }
 
-            //TODO game over effect
-            ui.restart.show();
-
-            Timers.runTask(30f, () -> state.set(State.menu));
+            threads.runGraphics(() -> {
+                Effects.shake(5, 6, Core.camera.position.x, Core.camera.position.y);
+                ui.restart.show();
+                state.set(State.menu);
+            });
         });
 
         Events.on(WorldLoadEvent.class, () -> threads.runGraphics(() -> Events.fire(WorldLoadGraphicsEvent.class)));
diff --git a/core/src/io/anuke/mindustry/maps/Sectors.java b/core/src/io/anuke/mindustry/maps/Sectors.java
index 1584e3f165..0b1d739fd9 100644
--- a/core/src/io/anuke/mindustry/maps/Sectors.java
+++ b/core/src/io/anuke/mindustry/maps/Sectors.java
@@ -5,6 +5,7 @@ import com.badlogic.gdx.graphics.Pixmap.Format;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.math.GridPoint2;
 import com.badlogic.gdx.utils.Array;
+import io.anuke.mindustry.core.GameState.State;
 import io.anuke.mindustry.game.Team;
 import io.anuke.mindustry.maps.generation.WorldGenerator.GenResult;
 import io.anuke.mindustry.world.ColorMapper;
@@ -26,6 +27,18 @@ public class Sectors{
         Settings.json().addClassTag("Sector", Sector.class);
     }
 
+    public void playSector(Sector sector){
+        if(!sector.hasSave()){
+            world.loadSector(sector);
+            logic.play();
+            sector.saveID = control.getSaves().addSave("sector-" + sector.packedPosition()).index;
+            world.sectors().save();
+        }else{
+            control.getSaves().getByID(sector.saveID).load();
+            state.set(State.playing);
+        }
+    }
+
     /**If a sector is not yet unlocked, returns null.*/
     public Sector get(int x, int y){
         return grid.get(x, y);
diff --git a/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java b/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
index fba0e5d89b..e1e5f1ea01 100644
--- a/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
+++ b/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
@@ -27,16 +27,16 @@ import static io.anuke.mindustry.Vars.*;
 
 
 public class WorldGenerator{
-    private final int seed = 0;
+    private static final int baseSeed = 0;
     private int oreIndex = 0;
 
-    private Simplex sim = new Simplex(seed);
-    private Simplex sim2 = new Simplex(seed + 1);
-    private Simplex sim3 = new Simplex(seed + 2);
-    private RidgedPerlin rid = new RidgedPerlin(seed + 4, 1);
-    private VoronoiNoise vn = new VoronoiNoise(seed + 2, (short)0);
+    private Simplex sim = new Simplex(baseSeed);
+    private Simplex sim2 = new Simplex(baseSeed + 1);
+    private Simplex sim3 = new Simplex(baseSeed + 2);
+    private RidgedPerlin rid = new RidgedPerlin(baseSeed + 4, 1);
+    private VoronoiNoise vn = new VoronoiNoise(baseSeed + 2, (short)0);
 
-    private SeedRandom random = new SeedRandom(seed + 3);
+    private SeedRandom random = new SeedRandom(baseSeed + 3);
 
     private GenResult result = new GenResult();
     private ObjectMap<Block, Block> decoration;
@@ -69,7 +69,7 @@ public class WorldGenerator{
         prepareTiles(tiles, seed, genOres);
     }
 
-    public void prepareTiles(Tile[][] tiles, int seed, boolean genOres){
+    public void prepareTiles(Tile[][] tiles, long seed, boolean genOres){
 
         //find multiblocks
         IntArray multiblocks = new IntArray();
@@ -137,11 +137,11 @@ public class WorldGenerator{
 
         if(genOres){
             Array<OreEntry> ores = Array.with(
-                    new OreEntry(Items.tungsten, 0.3f, seed),
-                    new OreEntry(Items.coal, 0.284f, seed),
-                    new OreEntry(Items.lead, 0.28f, seed),
-                    new OreEntry(Items.titanium, 0.27f, seed),
-                    new OreEntry(Items.thorium, 0.26f, seed)
+                new OreEntry(Items.tungsten, 0.3f, seed),
+                new OreEntry(Items.coal, 0.284f, seed),
+                new OreEntry(Items.lead, 0.28f, seed),
+                new OreEntry(Items.titanium, 0.27f, seed),
+                new OreEntry(Items.thorium, 0.26f, seed)
             );
 
             for(int x = 0; x < tiles.length; x++){
@@ -169,6 +169,8 @@ public class WorldGenerator{
 
     public void generateMap(Tile[][] tiles, int sectorX, int sectorY){
         int width = tiles.length, height = tiles[0].length;
+        long seed = Bits.packLong(sectorX, sectorY);
+        SeedRandom rnd = new SeedRandom(seed);
 
         for(int x = 0; x < width; x++){
             for(int y = 0; y < height; y++){
@@ -188,7 +190,7 @@ public class WorldGenerator{
                     if(!Mathf.inBounds(x + point.x, y + point.y, width, height)) continue;
                     if(tiles[x + point.x][y + point.y].getElevation() < elevation){
 
-                        if(Mathf.chance(0.06)){
+                        if(rnd.chance(0.06)){
                             tile.setElevation(-1);
                         }
                         break;
@@ -205,10 +207,6 @@ public class WorldGenerator{
         prepareTiles(tiles, seed, true);
     }
 
-    public void setSector(int sectorX, int sectorY){
-        random.setSeed(Bits.packLong(sectorX, sectorY));
-    }
-
     public GenResult generateTile(int sectorX, int sectorY, int localX, int localY){
         return generateTile(sectorX, sectorY, localX, localY, true);
     }
@@ -283,11 +281,11 @@ public class WorldGenerator{
         final RidgedPerlin ridge;
         final int index;
 
-        OreEntry(Item item, float frequency, int seed){
+        OreEntry(Item item, float frequency, long seed){
             this.frequency = frequency;
             this.item = item;
             this.noise = new Simplex(seed + oreIndex);
-            this.ridge = new RidgedPerlin(seed + oreIndex, 2);
+            this.ridge = new RidgedPerlin((int)(seed + oreIndex), 2);
             this.index = oreIndex++;
         }
     }
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/RestartDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/RestartDialog.java
index 38554f889f..c02bdecb5c 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/RestartDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/RestartDialog.java
@@ -1,30 +1,50 @@
 package io.anuke.mindustry.ui.dialogs;
 
 import io.anuke.mindustry.core.GameState.State;
-import io.anuke.ucore.scene.ui.Dialog;
+import io.anuke.mindustry.maps.Sector;
+import io.anuke.ucore.util.Bundles;
 
 import static io.anuke.mindustry.Vars.*;
 
-public class RestartDialog extends Dialog{
+public class RestartDialog extends FloatingDialog{
 
     public RestartDialog(){
-        super("$text.gameover", "dialog");
+        super("$text.gameover");
+        setFillParent(false);
+        shown(this::rebuild);
+    }
 
-        shown(() -> {
-            content().clearChildren();
+    void rebuild(){
+        buttons().clear();
+        content().clear();
+
+        buttons().margin(10);
+
+        if(world.getSector() == null){
             if(control.isHighScore()){
                 content().add("$text.highscore").pad(6);
                 content().row();
             }
-            content().add("$text.lasted").pad(12).get();
-            content().add("[accent]" + state.wave);
-            pack();
-        });
+            content().add(Bundles.format("text.wave.lasted", state.wave)).pad(12);
 
-        getButtonTable().addButton("$text.menu", () -> {
-            hide();
-            state.set(State.menu);
-            logic.reset();
-        }).size(130f, 60f);
+            buttons().addButton("$text.menu", () -> {
+                hide();
+                state.set(State.menu);
+                logic.reset();
+            }).size(130f, 60f);
+        }else{
+            content().add("$text.sector.gameover");
+            buttons().addButton("$text.menu", () -> {
+                hide();
+                state.set(State.menu);
+                logic.reset();
+            }).size(130f, 60f);
+
+            buttons().addButton("$text.sector.retry", () -> {
+                Sector sector = world.getSector();
+                ui.loadLogic(() -> world.sectors().playSector(sector));
+                hide();
+            }).size(130f, 60f);
+        }
     }
 }
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/SectorsDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/SectorsDialog.java
index 17ca964915..04ca259fe9 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/SectorsDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/SectorsDialog.java
@@ -3,7 +3,6 @@ package io.anuke.mindustry.ui.dialogs;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.math.Vector2;
-import io.anuke.mindustry.core.GameState.State;
 import io.anuke.mindustry.graphics.Palette;
 import io.anuke.mindustry.maps.Sector;
 import io.anuke.ucore.core.Graphics;
@@ -47,17 +46,7 @@ public class SectorsDialog extends FloatingDialog{
         buttons().addImageTextButton("$text.sector.deploy", "icon-play",  10*3, () -> {
             hide();
 
-            ui.loadLogic(() -> {
-                if(!selected.hasSave()){
-                    world.loadSector(selected);
-                    logic.play();
-                    selected.saveID = control.getSaves().addSave("sector-" + selected.packedPosition()).index;
-                    world.sectors().save();
-                }else{
-                    control.getSaves().getByID(selected.saveID).load();
-                    state.set(State.playing);
-                }
-            });
+            ui.loadLogic(() -> world.sectors().playSector(selected));
         }).size(230f, 64f).name("deploy-button").disabled(b -> selected == null);
 
         if(debug){