diff --git a/build.gradle b/build.gradle
index e3ae3ad3e9..1828919509 100644
--- a/build.gradle
+++ b/build.gradle
@@ -381,6 +381,7 @@ project(":tests"){
         testImplementation "org.junit.jupiter:junit-jupiter-params:5.7.1"
         testImplementation "org.junit.jupiter:junit-jupiter-api:5.7.1"
         testImplementation arcModule("backends:backend-headless")
+        testImplementation "org.json:json:20230618"
         testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.7.1"
     }
 
diff --git a/core/src/mindustry/ai/types/CommandAI.java b/core/src/mindustry/ai/types/CommandAI.java
index 0cf650ccc2..bedc78fc14 100644
--- a/core/src/mindustry/ai/types/CommandAI.java
+++ b/core/src/mindustry/ai/types/CommandAI.java
@@ -30,6 +30,8 @@ public class CommandAI extends AIController{
     public int groupIndex = 0;
     /** All encountered unreachable buildings of this AI. Why a sequence? Because contains() is very rarely called on it. */
     public IntSeq unreachableBuildings = new IntSeq(8);
+    /** ID of unit read as target. This is set up after reading. Do not access! */
+    public int readAttackTarget = -1;
 
     protected boolean stopAtTarget, stopWhenInRange;
     protected Vec2 lastTargetPos;
@@ -284,7 +286,7 @@ public class CommandAI extends AIController{
                 attackTarget = null;
             }
 
-            if(unit.isFlying() && move){
+            if(unit.isFlying() && move && (attackTarget == null || !unit.within(attackTarget, unit.type.range))){
                 unit.lookAt(vecMovePos);
             }else{
                 faceTarget();
@@ -349,6 +351,14 @@ public class CommandAI extends AIController{
         }
     }
 
+    @Override
+    public void afterRead(Unit unit){
+        if(readAttackTarget != -1){
+            attackTarget = Groups.unit.getByID(readAttackTarget);
+            readAttackTarget = -1;
+        }
+    }
+
     @Override
     public float prefSpeed(){
         return group == null ? super.prefSpeed() : Math.min(group.minSpeed, unit.speed());
diff --git a/core/src/mindustry/content/UnitTypes.java b/core/src/mindustry/content/UnitTypes.java
index bcb04b2fda..95f5ced15c 100644
--- a/core/src/mindustry/content/UnitTypes.java
+++ b/core/src/mindustry/content/UnitTypes.java
@@ -1845,6 +1845,7 @@ public class UnitTypes{
             armor = 3f;
 
             buildSpeed = 1.5f;
+            rotateToBuilding = false;
 
             weapons.add(new RepairBeamWeapon("repair-beam-weapon-center"){{
                 x = 0f;
@@ -1935,6 +1936,7 @@ public class UnitTypes{
             abilities.add(new StatusFieldAbility(StatusEffects.overclock, 60f * 6, 60f * 6f, 60f));
 
             buildSpeed = 2f;
+            rotateToBuilding = false;
 
             weapons.add(new Weapon("plasma-mount-weapon"){{
 
@@ -2009,6 +2011,7 @@ public class UnitTypes{
             trailScl = 2f;
 
             buildSpeed = 2f;
+            rotateToBuilding = false;
 
             weapons.add(new RepairBeamWeapon("repair-beam-weapon-center"){{
                 x = 11f;
@@ -2150,6 +2153,7 @@ public class UnitTypes{
             trailScl = 3.2f;
 
             buildSpeed = 3f;
+            rotateToBuilding = false;
 
             abilities.add(new EnergyFieldAbility(40f, 65f, 180f){{
                 statusDuration = 60f * 6f;
@@ -2193,6 +2197,7 @@ public class UnitTypes{
             trailScl = 3.5f;
 
             buildSpeed = 3.5f;
+            rotateToBuilding = false;
 
             for(float mountY : new float[]{-117/4f, 50/4f}){
                 for(float sign : Mathf.signs){
diff --git a/core/src/mindustry/entities/Fires.java b/core/src/mindustry/entities/Fires.java
index b22e39eb4f..0deafd3618 100644
--- a/core/src/mindustry/entities/Fires.java
+++ b/core/src/mindustry/entities/Fires.java
@@ -1,8 +1,6 @@
 package mindustry.entities;
 
 import arc.*;
-import arc.math.geom.*;
-import arc.struct.*;
 import arc.util.*;
 import mindustry.content.*;
 import mindustry.game.EventType.*;
@@ -14,13 +12,12 @@ import static mindustry.Vars.*;
 
 public class Fires{
     private static final float baseLifetime = 1000f;
-    private static final IntMap<Fire> map = new IntMap<>();
 
     /** Start a fire on the tile. If there already is a fire there, refreshes its lifetime. */
     public static void create(Tile tile){
         if(net.client() || tile == null || !state.rules.fire || !state.rules.hasEnv(Env.oxygen)) return; //not clientside.
 
-        Fire fire = map.get(tile.pos());
+        Fire fire = get(tile);
 
         if(fire == null){
             fire = Fire.create();
@@ -28,48 +25,58 @@ public class Fires{
             fire.lifetime = baseLifetime;
             fire.set(tile.worldx(), tile.worldy());
             fire.add();
-            map.put(tile.pos(), fire);
+            set(tile, fire);
         }else{
             fire.lifetime = baseLifetime;
             fire.time = 0f;
         }
     }
 
-    public static Fire get(int x, int y){
-        return map.get(Point2.pack(x, y));
+    public static @Nullable Fire get(Tile tile){
+        return world.tiles.getFire(tile.array());
+    }
+
+    public static @Nullable Fire get(int x, int y){
+        return world.tiles.getFire(world.packArray(x, y));
+    }
+
+    private static void set(Tile tile, Fire fire){
+        world.tiles.setFire(tile.array(), fire);
     }
 
     public static boolean has(int x, int y){
-        if(!Structs.inBounds(x, y, world.width(), world.height()) || !map.containsKey(Point2.pack(x, y))){
+        if(!Structs.inBounds(x, y, world.width(), world.height())){
             return false;
         }
-        Fire fire = map.get(Point2.pack(x, y));
-        return fire.isAdded() && fire.fin() < 1f && fire.tile() != null && fire.tile().x == x && fire.tile().y == y;
+        Fire fire = get(x, y);
+        return fire != null && fire.isAdded() && fire.fin() < 1f && fire.tile != null && fire.tile.x == x && fire.tile.y == y;
     }
 
     /**
      * Attempts to extinguish a fire by shortening its life. If there is no fire here, does nothing.
      */
     public static void extinguish(Tile tile, float intensity){
-        if(tile != null && map.containsKey(tile.pos())){
-            Fire fire = map.get(tile.pos());
-            fire.time(fire.time + intensity * Time.delta);
-            Fx.steam.at(fire);
-            if(fire.time >= fire.lifetime){
-                Events.fire(Trigger.fireExtinguish);
+        if(tile != null){
+            Fire fire = get(tile);
+            if(fire != null){
+                fire.time(fire.time + intensity * Time.delta);
+                Fx.steam.at(fire);
+                if(fire.time >= fire.lifetime){
+                    Events.fire(Trigger.fireExtinguish);
+                }
             }
         }
     }
 
     public static void remove(Tile tile){
         if(tile != null){
-            map.remove(tile.pos());
+            set(tile, null);
         }
     }
 
     public static void register(Fire fire){
         if(fire.tile != null){
-            map.put(fire.tile.pos(), fire);
+            set(fire.tile, fire);
         }
     }
 }
diff --git a/core/src/mindustry/entities/Puddles.java b/core/src/mindustry/entities/Puddles.java
index aa7e5bde8d..be7b1bba1b 100644
--- a/core/src/mindustry/entities/Puddles.java
+++ b/core/src/mindustry/entities/Puddles.java
@@ -26,8 +26,8 @@ public class Puddles{
     }
 
     /** Returns the Puddle on the specified tile. May return null. */
-    public static Puddle get(Tile tile){
-        return world.tiles.puddle(tile.array());
+    public static @Nullable Puddle get(Tile tile){
+        return world.tiles.getPuddle(tile.array());
     }
 
     public static void deposit(Tile tile, Tile source, Liquid liquid, float amount, boolean initial){
diff --git a/core/src/mindustry/entities/Units.java b/core/src/mindustry/entities/Units.java
index 998c2c05f3..a641bac7a8 100644
--- a/core/src/mindustry/entities/Units.java
+++ b/core/src/mindustry/entities/Units.java
@@ -214,7 +214,10 @@ public class Units{
             }
         });
 
-        return buildResult;
+        var result = buildResult;
+        buildResult = null;
+
+        return result;
     }
 
     /** Iterates through all buildings in a range. */
diff --git a/core/src/mindustry/entities/comp/EntityComp.java b/core/src/mindustry/entities/comp/EntityComp.java
index aaacdc521b..fdba35a737 100644
--- a/core/src/mindustry/entities/comp/EntityComp.java
+++ b/core/src/mindustry/entities/comp/EntityComp.java
@@ -66,4 +66,9 @@ abstract class EntityComp{
     void afterRead(){
 
     }
+
+    /** Called after *all* entities are read. */
+    void afterAllRead(){
+
+    }
 }
diff --git a/core/src/mindustry/entities/comp/PlayerComp.java b/core/src/mindustry/entities/comp/PlayerComp.java
index c995d3d9f0..fe787a8336 100644
--- a/core/src/mindustry/entities/comp/PlayerComp.java
+++ b/core/src/mindustry/entities/comp/PlayerComp.java
@@ -183,6 +183,9 @@ abstract class PlayerComp implements UnitController, Entityc, Syncc, Timerc, Dra
         if(!unit.isNull()){
             clearUnit();
         }
+
+        lastReadUnit = Nulls.unit;
+        justSwitchTo = justSwitchFrom = null;
     }
 
     public void team(Team team){
diff --git a/core/src/mindustry/entities/comp/UnitComp.java b/core/src/mindustry/entities/comp/UnitComp.java
index 4ff6b3168f..828c9880d7 100644
--- a/core/src/mindustry/entities/comp/UnitComp.java
+++ b/core/src/mindustry/entities/comp/UnitComp.java
@@ -490,6 +490,11 @@ abstract class UnitComp implements Healthc, Physicsc, Hitboxc, Statusc, Teamc, I
         }
     }
 
+    @Override
+    public void afterAllRead(){
+        controller.afterRead(self());
+    }
+
     @Override
     public void add(){
         team.data().updateCount(type, 1);
diff --git a/core/src/mindustry/entities/units/AIController.java b/core/src/mindustry/entities/units/AIController.java
index 6b688eb60a..963fb67933 100644
--- a/core/src/mindustry/entities/units/AIController.java
+++ b/core/src/mindustry/entities/units/AIController.java
@@ -55,6 +55,11 @@ public class AIController implements UnitController{
         return false;
     }
 
+    @Override
+    public void afterRead(Unit unit){
+
+    }
+
     @Override
     public boolean isLogicControllable(){
         return true;
diff --git a/core/src/mindustry/entities/units/UnitController.java b/core/src/mindustry/entities/units/UnitController.java
index ff861b805d..b77a857a2f 100644
--- a/core/src/mindustry/entities/units/UnitController.java
+++ b/core/src/mindustry/entities/units/UnitController.java
@@ -27,6 +27,10 @@ public interface UnitController{
 
     }
 
+    default void afterRead(Unit unit){
+
+    }
+
     default boolean isBeingControlled(Unit player){
         return false;
     }
diff --git a/core/src/mindustry/io/SaveIO.java b/core/src/mindustry/io/SaveIO.java
index 3ba9a38aa6..dea4ce7b72 100644
--- a/core/src/mindustry/io/SaveIO.java
+++ b/core/src/mindustry/io/SaveIO.java
@@ -56,8 +56,13 @@ public class SaveIO{
     }
 
     public static boolean isSaveValid(Fi file){
+        return isSaveFileValid(file) || isSaveFileValid(backupFileFor(file));
+    }
+
+    private static boolean isSaveFileValid(Fi file){
         try(DataInputStream stream = new DataInputStream(new InflaterInputStream(file.read(bufferSize)))){
-            return isSaveValid(stream);
+            getMeta(stream);
+            return true;
         }catch(Throwable e){
             return false;
         }
diff --git a/core/src/mindustry/io/SaveVersion.java b/core/src/mindustry/io/SaveVersion.java
index a1089b7dd3..e45d510893 100644
--- a/core/src/mindustry/io/SaveVersion.java
+++ b/core/src/mindustry/io/SaveVersion.java
@@ -437,6 +437,8 @@ public abstract class SaveVersion extends SaveFileReader{
         //entityMapping is null in older save versions, so use the default
         var mapping = this.entityMapping == null ? EntityMapping.idMap : this.entityMapping;
 
+        Seq<Entityc> entities = new Seq<>();
+
         int amount = stream.readInt();
         for(int j = 0; j < amount; j++){
             readChunk(stream, true, in -> {
@@ -449,12 +451,17 @@ public abstract class SaveVersion extends SaveFileReader{
                 int id = in.readInt();
 
                 Entityc entity = (Entityc)mapping[typeid].get();
+                entities.add(entity);
                 EntityGroup.checkNextId(id);
                 entity.id(id);
                 entity.read(Reads.get(in));
                 entity.add();
             });
         }
+
+        for(var e : entities){
+            e.afterAllRead();
+        }
     }
 
     public void readEntityMapping(DataInput stream) throws IOException{
diff --git a/core/src/mindustry/io/TypeIO.java b/core/src/mindustry/io/TypeIO.java
index d2db6b1e70..4a80eca3e9 100644
--- a/core/src/mindustry/io/TypeIO.java
+++ b/core/src/mindustry/io/TypeIO.java
@@ -563,13 +563,14 @@ public class TypeIO{
                 ai.targetPos = null;
             }
             ai.setupLastPos();
+            ai.readAttackTarget = -1;
 
             if(hasAttack){
                 byte entityType = read.b();
                 if(entityType == 1){
                     ai.attackTarget = world.build(read.i());
                 }else{
-                    ai.attackTarget = Groups.unit.getByID(read.i());
+                    ai.attackTarget = Groups.unit.getByID(ai.readAttackTarget = read.i());
                 }
             }else{
                 ai.attackTarget = null;
diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 1541a43f60..b32faa78aa 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -1372,13 +1372,20 @@ public class LExecutor{
                         exec.setobj(result, i < 0 || i >= builds.size ? null : builds.get(i));
                     }
                 }
-                case unitCount -> exec.setnum(result, data.units.size);
+                case unitCount -> {
+                    UnitType type = exec.obj(extra) instanceof UnitType u ? u : null;
+                    if(type == null){
+                        exec.setnum(result, data.units.size);
+                    }else{
+                        exec.setnum(result, data.unitsByType[type.id].size);
+                    }
+                }
                 case coreCount -> exec.setnum(result, data.cores.size);
                 case playerCount -> exec.setnum(result, data.players.size);
                 case buildCount -> {
                     Block block = exec.obj(extra) instanceof Block b ? b : null;
                     if(block == null){
-                        exec.setobj(result, null);
+                        exec.setnum(result, data.buildings.size);
                     }else{
                         exec.setnum(result, data.getBuildings(block).size);
                     }
diff --git a/core/src/mindustry/logic/LStatements.java b/core/src/mindustry/logic/LStatements.java
index d688c41212..b5aafdfcee 100644
--- a/core/src/mindustry/logic/LStatements.java
+++ b/core/src/mindustry/logic/LStatements.java
@@ -1740,7 +1740,7 @@ public class LStatements{
                 fields(table, index, i -> index = i);
             }
 
-            if(type == FetchType.buildCount || type == FetchType.build){
+            if(type == FetchType.buildCount || type == FetchType.build || type == FetchType.unitCount){
                 row(table);
 
                 fields(table, "block", extra, i -> extra = i);
diff --git a/core/src/mindustry/type/UnitType.java b/core/src/mindustry/type/UnitType.java
index a8623a6d65..8c29a2e50d 100644
--- a/core/src/mindustry/type/UnitType.java
+++ b/core/src/mindustry/type/UnitType.java
@@ -952,7 +952,7 @@ public class UnitType extends UnlockableContent implements Senseable{
     public void createIcons(MultiPacker packer){
         super.createIcons(packer);
 
-        if(constructor == null) throw new IllegalArgumentException("No constructor set up for unit '" + name + "'. Make sure you assign a valid value to `constructor`, e.g. `constructor = UnitEntity::new`");
+        if(constructor == null) throw new IllegalArgumentException("No constructor set up for unit '" + name + "', add this argument to your units field: `constructor = UnitEntity::create`");
 
         sample = constructor.get();
 
diff --git a/core/src/mindustry/ui/fragments/BlockConfigFragment.java b/core/src/mindustry/ui/fragments/BlockConfigFragment.java
index 144bfeb8d6..356c63fca4 100644
--- a/core/src/mindustry/ui/fragments/BlockConfigFragment.java
+++ b/core/src/mindustry/ui/fragments/BlockConfigFragment.java
@@ -43,6 +43,7 @@ public class BlockConfigFragment{
 
             table.visible = true;
             table.clear();
+            table.background(null);
             tile.buildConfiguration(table);
             table.pack();
             table.setTransform(true);
diff --git a/core/src/mindustry/world/Tiles.java b/core/src/mindustry/world/Tiles.java
index 37d8bd41d2..85a2f54c4c 100644
--- a/core/src/mindustry/world/Tiles.java
+++ b/core/src/mindustry/world/Tiles.java
@@ -14,15 +14,17 @@ public class Tiles implements Iterable<Tile>{
 
     final Tile[] array;
     final Puddle[] puddles;
+    final Fire[] fires;
 
     public Tiles(int width, int height){
         this.array = new Tile[width * height];
         this.width = width;
         this.height = height;
         this.puddles = new Puddle[width * height];
+        this.fires = new Fire[width * height];
     }
 
-    public Puddle puddle(int pos){
+    public Puddle getPuddle(int pos){
         return puddles[pos];
     }
 
@@ -30,6 +32,15 @@ public class Tiles implements Iterable<Tile>{
         puddles[pos] = p;
     }
 
+    public Fire getFire(int pos){
+        return fires[pos];
+    }
+
+    public void setFire(int pos, Fire f){
+        fires[pos] = f;
+    }
+
+
     public void each(Intc2 cons){
         for(int x = 0; x < width; x++){
             for(int y = 0; y < height; y++){
diff --git a/gradle.properties b/gradle.properties
index 63ba2cb1ef..1f85852147 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -25,4 +25,4 @@ org.gradle.caching=true
 #used for slow jitpack builds; TODO see if this actually works
 org.gradle.internal.http.socketTimeout=100000
 org.gradle.internal.http.connectionTimeout=100000
-archash=f1e4bdee85
+archash=774bfa97b0
diff --git a/servers_v7.json b/servers_v7.json
index 68bbcfec89..a760a6979e 100644
--- a/servers_v7.json
+++ b/servers_v7.json
@@ -1,15 +1,15 @@
 [
-  {
-    "name": "Vndustry",
-    "address": ["140.238.246.78:7000"]
-  },
   {
     "name": "STP",
     "address": ["23.88.73.88:25617"]
   },
+  {
+    "name" : "LesGarsCools",
+    "address": ["est1.be"]
+  },
   {
     "name": "meiqiuMDT",
-    "address": ["cn1.plush.run:10001","211.101.236.94:10000","bj-1.lcf.icu:10240","play.simpfun.cn:14523"]
+    "address": ["cn1.meiqiumdy.top:7000","cn1.meiqiumdt.top:7002","cn1.meiqiumdt.top:7006","bj-1.lcf.icu:10240"]
   },
   {
     "name": "Crux's Revelations",
@@ -85,7 +85,7 @@
   },
   {
     "name": "MinDurka",
-    "address": ["81.30.157.68", "81.30.157.68:3001", "81.30.157.68:3002", "81.30.157.68:3003", "81.30.157.68:3004", "81.30.157.68:3005", "81.30.157.68:3006", "81.30.157.68:3007", "81.30.157.68:3008", "81.30.157.68:3009", "81.30.157.68:3010"]
+    "address": ["95.181.151.210", "95.181.151.210:3001", "95.181.151.210:3002", "95.181.151.210:3003", "95.181.151.210:3004", "95.181.151.210:3005", "95.181.151.210:3006", "95.181.151.210:3007", "95.181.151.210:3008", "95.181.151.210:3009", "95.181.151.210:3010"]
   },
   {
     "name": "Chaotic Neutral",
@@ -133,7 +133,7 @@
   },
   {
     "name": "Eradication Mindustry",
-    "address": ["140.238.246.78:6569", "140.238.246.78:9547", "140.238.246.78:6572", "140.238.246.78:6570", "140.238.246.78:6571", "140.238.246.78:6574", "140.238.246.78:6573", "140.238.246.78:6568", "140.238.246.78:6677", "140.238.246.78:6678", "140.238.246.78:6675", "130.61.22.183:6573", "130.61.22.183:6599", "130.61.22.183:6774", "130.61.22.183:6777"]
+    "address": ["140.238.246.78:7000", "140.238.246.78:7001", "140.238.246.78:7002", "140.238.246.78:7003", "140.238.246.78:7004", "140.238.246.78:7005", "130.61.22.183:7000", "130.61.22.183:7001", "130.61.22.183:7002", "130.61.22.183:7003", "130.61.22.183:7004", "130.61.22.183:7005", "77.99.254.211:7000", "77.99.254.211:7001", "77.99.254.211:7002", "141.148.196.135:7000"]
   },
   {
     "name": "Conservatory",
@@ -141,7 +141,7 @@
   },
   {
     "name": "mindustry.ddns.net",
-    "address": ["mindustry.ddns.net", "mindustry.ddns.net:1000", "mindustry.ddns.net:2000", "mindustry.ddns.net:3000", "mindustry.ddns.net:4000"]
+    "address": ["mindustry.ddns.net", "mindustry.ddns.net:1000", "mindustry.ddns.net:2000", "mindustry.ddns.net:3000", "mindustry.ddns.net:4000", "mindustry.ddns.net:5000"]
   },
   {
     "name": "EasyPlay.su",
@@ -226,11 +226,11 @@
   },
   {
     "name": "3MIDustry",
-    "address": ["3midustry.xyz:10", "3midustry.xyz:20", "3midustry.xyz:30", "3midustry.xyz:40", "3midustry.xyz:50", "3midustry.xyz:60", "3midustry.xyz:6567"]
+    "address": ["play.3midustry.xyz:6001", "play.3midustry.xyz:6002", "play.3midustry.xyz:6003", "play.3midustry.xyz:6004", "play.3midustry.xyz:6005", "play.3midustry.xyz:6006", "play.3midustry.xyz:6007", "play.3midustry.xyz:6008", "play.3midustry.xyz:6009", "play.3midustry.xyz:6010"]
   },
   {
     "name": "ABCXYZ Community",
-    "address": ["23.88.73.88:23591", "23.88.73.88:23539", "144.76.57.59:14996", "144.76.57.59:16881", "144.76.57.59:13885", "23.88.73.88:32113", "144.76.57.59:9269", "144.76.57.59:24235", "144.76.57.59:24133"]
+    "address": ["23.88.73.88:23591", "23.88.73.88:23539", "144.76.57.59:14996", "144.76.57.59:16881", "144.76.57.59:13885", "23.88.73.88:32113", "144.76.57.59:9269", "144.76.57.59:24235", "144.76.57.59:24133", "140.238.246.78:7000"]
   },
   {
     "name": "CroCraft Network",
@@ -238,7 +238,7 @@
   },
   {
     "name": "Extra Utilities",
-    "address": ["222.186.59.147:15142", "222.186.59.147:15143"]
+    "address": ["222.186.59.147:15142", "222.186.59.147:15143", "p1.i9mr.com:44922", "p1.i9mr.com:44834"]
   },
   {
     "name": "Alex Multiverse",
@@ -263,5 +263,9 @@
   {
     "name": "SkyPlex",
     "address": ["mc-skyplex.net"]
+  },
+  {
+    "name": "Gadgetroch's Server",
+    "address": ["mindustry.gadgetroch.com", "mindustry.gadgetroch.com:6568"]
   }
 ]
diff --git a/tests/src/test/java/ApplicationTests.java b/tests/src/test/java/ApplicationTests.java
index 1885a31d94..773a91ffa3 100644
--- a/tests/src/test/java/ApplicationTests.java
+++ b/tests/src/test/java/ApplicationTests.java
@@ -26,6 +26,7 @@ import mindustry.type.*;
 import mindustry.world.*;
 import mindustry.world.blocks.payloads.*;
 import mindustry.world.blocks.storage.*;
+import org.json.*;
 import org.junit.jupiter.api.*;
 import org.junit.jupiter.params.*;
 import org.junit.jupiter.params.provider.*;
@@ -227,11 +228,14 @@ public class ApplicationTests{
     void serverListJson(){
         String[] files = {"servers_v6.json", "servers_v7.json", "servers_be.json"};
 
+
         for(String file : files){
             try{
                 String str = Core.files.absolute("./../../" + file).readString();
                 assertEquals(ValueType.array, new JsonReader().parse(str).type());
                 assertTrue(Jval.read(str).isArray());
+                JSONArray array = new JSONArray(str);
+                assertTrue(array.length() > 0);
             }catch(Exception e){
                 fail("Failed to parse " + file, e);
             }