diff --git a/android/build.gradle b/android/build.gradle
index 24ce776494..2c3912aeba 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -8,7 +8,7 @@ buildscript {
     }
     
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
     }
 }
 
diff --git a/core/src/io/anuke/mindustry/core/Logic.java b/core/src/io/anuke/mindustry/core/Logic.java
index 6554acb117..50681fb1b4 100644
--- a/core/src/io/anuke/mindustry/core/Logic.java
+++ b/core/src/io/anuke/mindustry/core/Logic.java
@@ -70,6 +70,7 @@ public class Logic implements ApplicationListener{
         state.gameOver = state.launched = false;
         state.teams = new Teams();
         state.rules = new Rules();
+        state.rules.spawns = Waves.getDefaultSpawns();
         state.stats = new Stats();
 
         Time.clear();
diff --git a/core/src/io/anuke/mindustry/game/Rules.java b/core/src/io/anuke/mindustry/game/Rules.java
index 16a8b52845..ce6d1c7552 100644
--- a/core/src/io/anuke/mindustry/game/Rules.java
+++ b/core/src/io/anuke/mindustry/game/Rules.java
@@ -28,5 +28,5 @@ public class Rules{
     /**Zone ID, -1 for invalid zone.*/
     public byte zone = -1;
     /**Spawn layout. Since only zones modify this, it should be assigned on save load.*/
-    public transient Array<SpawnGroup> spawns = Waves.getDefaultSpawns();
+    public transient Array<SpawnGroup> spawns = new Array<>();
 }
diff --git a/core/src/io/anuke/mindustry/game/Waves.java b/core/src/io/anuke/mindustry/game/Waves.java
index 48d6baf44c..3487fced36 100644
--- a/core/src/io/anuke/mindustry/game/Waves.java
+++ b/core/src/io/anuke/mindustry/game/Waves.java
@@ -8,162 +8,165 @@ import io.anuke.mindustry.content.Weapons;
 import io.anuke.mindustry.type.ItemStack;
 
 public class Waves{
-    private static Array<SpawnGroup> spawns = Array.with(
-        new SpawnGroup(UnitTypes.dagger){{
-            end = 8;
-            unitScaling = 3;
-        }},
-
-        new SpawnGroup(UnitTypes.wraith){{
-            begin = 12;
-            end = 14;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 11;
-            unitScaling = 2;
-            spacing = 2;
-            max = 4;
-        }},
-
-        new SpawnGroup(UnitTypes.titan){{
-            begin = 9;
-            spacing = 3;
-            unitScaling = 2;
-
-            end = 30;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 10;
-            unitScaling = 2;
-            unitAmount = 1;
-            spacing = 2;
-            end = 30;
-        }},
-
-        new SpawnGroup(UnitTypes.titan){{
-            begin = 28;
-            spacing = 3;
-            unitScaling = 2;
-            weapon = Weapons.flamethrower;
-            end = 40;
-        }},
-
-        new SpawnGroup(UnitTypes.titan){{
-            begin = 45;
-            spacing = 3;
-            unitScaling = 2;
-            weapon = Weapons.flamethrower;
-            effect = StatusEffects.overdrive;
-        }},
-
-        new SpawnGroup(UnitTypes.titan){{
-            begin = 120;
-            spacing = 2;
-            unitScaling = 3;
-            unitAmount = 5;
-            weapon = Weapons.flakgun;
-            effect = StatusEffects.overdrive;
-        }},
-
-        new SpawnGroup(UnitTypes.wraith){{
-            begin = 16;
-            unitScaling = 2;
-            spacing = 2;
-
-            end = 39;
-            max = 7;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 82;
-            spacing = 3;
-            unitAmount = 4;
-            unitScaling = 3;
-            effect = StatusEffects.overdrive;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 41;
-            spacing = 5;
-            unitAmount = 1;
-            unitScaling = 3;
-            effect = StatusEffects.shielded;
-            max = 10;
-        }},
-
-        new SpawnGroup(UnitTypes.fortress){{
-            begin = 40;
-            spacing = 5;
-            unitAmount = 2;
-            unitScaling = 3;
-            max = 10;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 35;
-            spacing = 3;
-            unitAmount = 4;
-            effect = StatusEffects.overdrive;
-            items = new ItemStack(Items.blastCompound, 60);
-            end = 60;
-        }},
-
-        new SpawnGroup(UnitTypes.dagger){{
-            begin = 42;
-            spacing = 3;
-            unitAmount = 4;
-            effect = StatusEffects.overdrive;
-            items = new ItemStack(Items.pyratite, 100);
-            end = 130;
-        }},
-
-        new SpawnGroup(UnitTypes.ghoul){{
-            begin = 40;
-            unitAmount = 2;
-            spacing = 2;
-            unitScaling = 3;
-            max = 8;
-        }},
-
-        new SpawnGroup(UnitTypes.wraith){{
-            begin = 50;
-            unitAmount = 4;
-            unitScaling = 3;
-            spacing = 5;
-            effect = StatusEffects.overdrive;
-            max = 8;
-        }},
-
-        new SpawnGroup(UnitTypes.revenant){{
-            begin = 50;
-            unitAmount = 4;
-            unitScaling = 3;
-            spacing = 5;
-            max = 8;
-        }},
-
-        new SpawnGroup(UnitTypes.ghoul){{
-            begin = 53;
-            unitAmount = 2;
-            unitScaling = 3;
-            spacing = 4;
-            max = 8;
-            end = 74;
-        }},
-
-        new SpawnGroup(UnitTypes.ghoul){{
-            begin = 53;
-            unitAmount = 2;
-            unitScaling = 3;
-            spacing = 4;
-            max = 8;
-            end = 74;
-        }}
-    );
+    private static Array<SpawnGroup> spawns;
 
     public static Array<SpawnGroup> getDefaultSpawns(){
+        if(spawns == null){
+            spawns = Array.with(
+            new SpawnGroup(UnitTypes.dagger){{
+                end = 8;
+                unitScaling = 3;
+            }},
+
+            new SpawnGroup(UnitTypes.wraith){{
+                begin = 12;
+                end = 14;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 11;
+                unitScaling = 2;
+                spacing = 2;
+                max = 4;
+            }},
+
+            new SpawnGroup(UnitTypes.titan){{
+                begin = 9;
+                spacing = 3;
+                unitScaling = 2;
+
+                end = 30;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 10;
+                unitScaling = 2;
+                unitAmount = 1;
+                spacing = 2;
+                end = 30;
+            }},
+
+            new SpawnGroup(UnitTypes.titan){{
+                begin = 28;
+                spacing = 3;
+                unitScaling = 2;
+                weapon = Weapons.flamethrower;
+                end = 40;
+            }},
+
+            new SpawnGroup(UnitTypes.titan){{
+                begin = 45;
+                spacing = 3;
+                unitScaling = 2;
+                weapon = Weapons.flamethrower;
+                effect = StatusEffects.overdrive;
+            }},
+
+            new SpawnGroup(UnitTypes.titan){{
+                begin = 120;
+                spacing = 2;
+                unitScaling = 3;
+                unitAmount = 5;
+                weapon = Weapons.flakgun;
+                effect = StatusEffects.overdrive;
+            }},
+
+            new SpawnGroup(UnitTypes.wraith){{
+                begin = 16;
+                unitScaling = 2;
+                spacing = 2;
+
+                end = 39;
+                max = 7;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 82;
+                spacing = 3;
+                unitAmount = 4;
+                unitScaling = 3;
+                effect = StatusEffects.overdrive;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 41;
+                spacing = 5;
+                unitAmount = 1;
+                unitScaling = 3;
+                effect = StatusEffects.shielded;
+                max = 10;
+            }},
+
+            new SpawnGroup(UnitTypes.fortress){{
+                begin = 40;
+                spacing = 5;
+                unitAmount = 2;
+                unitScaling = 3;
+                max = 10;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 35;
+                spacing = 3;
+                unitAmount = 4;
+                effect = StatusEffects.overdrive;
+                items = new ItemStack(Items.blastCompound, 60);
+                end = 60;
+            }},
+
+            new SpawnGroup(UnitTypes.dagger){{
+                begin = 42;
+                spacing = 3;
+                unitAmount = 4;
+                effect = StatusEffects.overdrive;
+                items = new ItemStack(Items.pyratite, 100);
+                end = 130;
+            }},
+
+            new SpawnGroup(UnitTypes.ghoul){{
+                begin = 40;
+                unitAmount = 2;
+                spacing = 2;
+                unitScaling = 3;
+                max = 8;
+            }},
+
+            new SpawnGroup(UnitTypes.wraith){{
+                begin = 50;
+                unitAmount = 4;
+                unitScaling = 3;
+                spacing = 5;
+                effect = StatusEffects.overdrive;
+                max = 8;
+            }},
+
+            new SpawnGroup(UnitTypes.revenant){{
+                begin = 50;
+                unitAmount = 4;
+                unitScaling = 3;
+                spacing = 5;
+                max = 8;
+            }},
+
+            new SpawnGroup(UnitTypes.ghoul){{
+                begin = 53;
+                unitAmount = 2;
+                unitScaling = 3;
+                spacing = 4;
+                max = 8;
+                end = 74;
+            }},
+
+            new SpawnGroup(UnitTypes.ghoul){{
+                begin = 53;
+                unitAmount = 2;
+                unitScaling = 3;
+                spacing = 4;
+                max = 8;
+                end = 74;
+            }}
+            );
+        }
         return spawns;
     }
 
diff --git a/gradle.properties b/gradle.properties
index d8e2a1210f..e08bde78fc 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,4 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms512m -Xmx1536m
-android.enableAapt2=true
 android.injected.build.model.only.versioned=3
-android.enableD8=true
+android.enableD8=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 29953ea141..457aad0d98 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index e0b3fb8d70..290541c738 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index cccdd3d517..af6708ff22 100755
--- a/gradlew
+++ b/gradlew
@@ -28,7 +28,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
diff --git a/gradlew.bat b/gradlew.bat
index e95643d6a2..0f8d5937c4 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
diff --git a/server/src/io/anuke/mindustry/server/ServerControl.java b/server/src/io/anuke/mindustry/server/ServerControl.java
index a0acd29484..8717c54f44 100644
--- a/server/src/io/anuke/mindustry/server/ServerControl.java
+++ b/server/src/io/anuke/mindustry/server/ServerControl.java
@@ -26,10 +26,8 @@ import io.anuke.mindustry.net.Net;
 import io.anuke.mindustry.net.Packets.KickReason;
 import io.anuke.mindustry.type.Item;
 import io.anuke.mindustry.type.ItemType;
-import io.anuke.mindustry.world.Tile;
 
 import java.io.IOException;
-import java.lang.StringBuilder;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.Scanner;
@@ -565,33 +563,6 @@ public class ServerControl implements ApplicationListener{
             Events.fire(new GameOverEvent(Team.red));
         });
 
-        handler.register("traceblock", "<x> <y>", "Prints debug info about a block", arg -> {
-            try{
-                int x = Integer.parseInt(arg[0]);
-                int y = Integer.parseInt(arg[1]);
-                Tile tile = world.tile(x, y);
-                if(tile != null){
-                    if(tile.entity != null){
-                        Array<Object> arr = tile.block().getDebugInfo(tile);
-                        StringBuilder result = new StringBuilder();
-                        for(int i = 0; i < arr.size / 2; i++){
-                            result.append(arr.get(i * 2));
-                            result.append(": ");
-                            result.append(arr.get(i * 2 + 1));
-                            result.append("\n");
-                        }
-                        info("&ly{0}", result);
-                    }else{
-                        info("No tile entity for that block.");
-                    }
-                }else{
-                    info("No tile at that location.");
-                }
-            }catch(NumberFormatException e){
-                err("Invalid coordinates passed.");
-            }
-        });
-
         handler.register("info", "<IP/UUID/name...>", "Find player info(s). Can optionally check for all names or IPs a player has had.", arg -> {
 
             ObjectSet<PlayerInfo> infos = netServer.admins.findByName(arg[0]);
diff --git a/tests/src/test/java/ApplicationTests.java b/tests/src/test/java/ApplicationTests.java
index 3ca61212eb..eeab0b2642 100644
--- a/tests/src/test/java/ApplicationTests.java
+++ b/tests/src/test/java/ApplicationTests.java
@@ -33,6 +33,7 @@ import static io.anuke.mindustry.Vars.*;
 import static org.junit.jupiter.api.Assertions.*;
 
 public class ApplicationTests{
+    static Map testMap;
 
     @BeforeAll
     static void launchApplication(){
@@ -62,6 +63,7 @@ public class ApplicationTests{
                 public void init(){
                     super.init();
                     begins[0] = true;
+                    testMap = world.maps.loadInternalMap("groundZero");
                 }
             };
 
@@ -105,12 +107,12 @@ public class ApplicationTests{
     void playMap(){
         assertTrue(world.maps.all().size > 0);
 
-        world.loadMap(world.maps.all().first());
+        world.loadMap(testMap);
     }
 
     @Test
     void spawnWaves(){
-        world.loadMap(world.maps.all().first());
+        world.loadMap(testMap);
         logic.runWave();
         unitGroups[waveTeam.ordinal()].updateEvents();
         assertFalse(unitGroups[waveTeam.ordinal()].isEmpty());
@@ -176,7 +178,7 @@ public class ApplicationTests{
     void save(){
         assertTrue(world.maps.all().size > 0);
 
-        world.loadMap(world.maps.all().first());
+        world.loadMap(testMap);
         SaveIO.saveToSlot(0);
     }
 
@@ -184,14 +186,14 @@ public class ApplicationTests{
     void load(){
         assertTrue(world.maps.all().size > 0);
 
-        world.loadMap(world.maps.all().first());
+        world.loadMap(testMap);
         Map map = world.getMap();
 
         SaveIO.saveToSlot(0);
         resetWorld();
         SaveIO.loadFromSlot(0);
 
-        assertEquals(world.getMap(), map);
+        assertEquals(world.getMap().name, map.name);
         assertEquals(world.width(), map.meta.width);
         assertEquals(world.height(), map.meta.height);
     }
@@ -225,8 +227,8 @@ public class ApplicationTests{
         d1.set(10f, 20f);
         d2.set(10f, 20f);
 
-        d1.addBuildRequest(new BuildRequest(0, 0, 0, Recipe.getByResult(Blocks.copperWallLarge)));
-        d2.addBuildRequest(new BuildRequest(1, 1, 0, Recipe.getByResult(Blocks.copperWallLarge)));
+        d1.addBuildRequest(new BuildRequest(0, 0, 0, Blocks.copperWallLarge));
+        d2.addBuildRequest(new BuildRequest(1, 1, 0, Blocks.copperWallLarge));
 
         Time.setDeltaProvider(() -> 9999999f);
         d1.updateBuilding(d1);
@@ -247,7 +249,7 @@ public class ApplicationTests{
         d1.set(10f, 20f);
         d2.set(10f, 20f);
 
-        d1.addBuildRequest(new BuildRequest(0, 0, 0, Recipe.getByResult(Blocks.copperWallLarge)));
+        d1.addBuildRequest(new BuildRequest(0, 0, 0, Blocks.copperWallLarge));
         d2.addBuildRequest(new BuildRequest(1, 1));
 
         Time.setDeltaProvider(() -> 3f);