diff --git a/core/src/mindustry/maps/generators/BasicGenerator.java b/core/src/mindustry/maps/generators/BasicGenerator.java
index 57cd4a583b..ee279ff30c 100644
--- a/core/src/mindustry/maps/generators/BasicGenerator.java
+++ b/core/src/mindustry/maps/generators/BasicGenerator.java
@@ -21,12 +21,10 @@ public abstract class BasicGenerator implements WorldGenerator{
     protected Rand rand = new Rand();
 
     protected int width, height;
-    protected Tiles tiles;
+    protected @Nullable Tiles tiles;
 
     //for drawing
-    protected Block floor;
-    protected Block block;
-    protected Block ore;
+    protected @Nullable Block floor, block, ore;
 
     @Override
     public void generate(Tiles tiles){
diff --git a/core/src/mindustry/maps/generators/PlanetGenerator.java b/core/src/mindustry/maps/generators/PlanetGenerator.java
index 55f2159ea1..3b67cd13c1 100644
--- a/core/src/mindustry/maps/generators/PlanetGenerator.java
+++ b/core/src/mindustry/maps/generators/PlanetGenerator.java
@@ -3,6 +3,7 @@ package mindustry.maps.generators;
 import arc.math.geom.*;
 import arc.struct.*;
 import arc.struct.ObjectIntMap.*;
+import arc.util.*;
 import arc.util.noise.*;
 import mindustry.content.*;
 import mindustry.ctype.*;
@@ -20,7 +21,7 @@ public abstract class PlanetGenerator extends BasicGenerator implements HexMeshe
     public int seed = 0;
 
     protected IntSeq ints = new IntSeq();
-    protected Sector sector;
+    protected @Nullable Sector sector;
 
     /** Should generate sector bases for a planet. */
     public void generateSector(Sector sector){
diff --git a/core/src/mindustry/maps/planet/AsteroidGenerator.java b/core/src/mindustry/maps/planet/AsteroidGenerator.java
index 8b632af9a9..09112f83f3 100644
--- a/core/src/mindustry/maps/planet/AsteroidGenerator.java
+++ b/core/src/mindustry/maps/planet/AsteroidGenerator.java
@@ -2,6 +2,7 @@ package mindustry.maps.planet;
 
 import arc.math.*;
 import arc.math.geom.*;
+import arc.util.*;
 import arc.util.noise.*;
 import mindustry.content.*;
 import mindustry.game.*;
@@ -21,7 +22,7 @@ public class AsteroidGenerator extends BlankPlanetGenerator{
 
     public float thoriumScl = 1f, copperScale = 1f, leadScale = 1f, graphiteScale = 1f, berylliumScale = 1f;
 
-    Rand rand;
+    @Nullable Rand rand;
     int seed;
 
     void asteroid(int ax, int ay, int radius){
diff --git a/core/src/mindustry/mod/ContentParser.java b/core/src/mindustry/mod/ContentParser.java
index 7f8c7873d7..a31a132b57 100644
--- a/core/src/mindustry/mod/ContentParser.java
+++ b/core/src/mindustry/mod/ContentParser.java
@@ -32,6 +32,7 @@ import mindustry.game.Objectives.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
 import mindustry.graphics.g3d.*;
+import mindustry.graphics.g3d.PlanetGrid.*;
 import mindustry.io.*;
 import mindustry.maps.generators.*;
 import mindustry.maps.planet.*;
@@ -499,6 +500,7 @@ public class ContentParser{
             SectorPreset out = new SectorPreset(name, locate(ContentType.planet, value.getString("planet", "serpulo")), value.getInt("sector"));
             value.remove("sector");
             value.remove("planet");
+            currentContent = out;
             read(() -> readFields(out, value));
             return out;
         },
@@ -508,12 +510,14 @@ public class ContentParser{
             Planet parent = locate(ContentType.planet, value.getString("parent"));
             Planet planet = new Planet(name, parent, value.getFloat("radius", 1f), value.getInt("sectorSize", 0));
 
-            //TODO unimplemented; still needs generator + mesh
             if(value.has("mesh")){
                 planet.meshLoader = () -> parser.readValue(GenericMesh.class, value.get("mesh"));
             }
 
-            //TODO unimplemented!!
+            //always one sector right now...
+            planet.sectors.add(new Sector(planet, Ptile.empty));
+
+            currentContent = planet;
             read(() -> readFields(planet, value));
             return planet;
         }