diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index 7146a525af..f43517e27c 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -672,7 +672,7 @@ sector.extractionOutpost.description = A remote outpost, constructed by the enem
 sector.impact0078.description = Here lie remnants of the interstellar transport vessel that first entered this system.\n\nSalvage as much as possible from the wreckage. Research any intact technology.
 sector.planetaryTerminal.description = The final target.\n\nThis coastal base contains a structure capable of launching Cores to local planets. It is extremely well guarded.\n\nProduce naval units. Eliminate the enemy as quickly as possible. Research the launch structure.
 
-sector.onset.name = Onset
+sector.onset.name = The Onset
 
 status.burning.name = Burning
 status.freezing.name = Freezing
diff --git a/core/src/mindustry/ai/types/GroundAI.java b/core/src/mindustry/ai/types/GroundAI.java
index 5e2c561d79..80c5da653a 100644
--- a/core/src/mindustry/ai/types/GroundAI.java
+++ b/core/src/mindustry/ai/types/GroundAI.java
@@ -34,6 +34,11 @@ public class GroundAI extends AIController{
                 if(spawner == null && core == null) move = false;
             }
 
+            //no reason to move if there's nothing there
+            if(core == null && (!state.rules.waves || getClosestSpawner() == null)){
+                move = false;
+            }
+
             if(move) pathfind(Pathfinder.fieldCore);
         }
 
diff --git a/core/src/mindustry/content/ErekirTechTree.java b/core/src/mindustry/content/ErekirTechTree.java
index bff8fc6be4..ef60a72ba6 100644
--- a/core/src/mindustry/content/ErekirTechTree.java
+++ b/core/src/mindustry/content/ErekirTechTree.java
@@ -16,6 +16,7 @@ public class ErekirTechTree{
         var costMultipliers = new ObjectFloatMap<Item>();
         costMultipliers.put(Items.silicon, 7);
         costMultipliers.put(Items.surgeAlloy, 4);
+        costMultipliers.put(Items.phaseFabric, 4);
         costMultipliers.put(Items.thorium, 8);
         costMultipliers.put(Items.graphite, 6);
 
diff --git a/core/src/mindustry/content/Items.java b/core/src/mindustry/content/Items.java
index 403271ebcf..c0a27302f9 100644
--- a/core/src/mindustry/content/Items.java
+++ b/core/src/mindustry/content/Items.java
@@ -1,6 +1,7 @@
 package mindustry.content;
 
 import arc.graphics.*;
+import arc.struct.*;
 import mindustry.type.*;
 
 public class Items{
@@ -9,6 +10,9 @@ public class Items{
     phaseFabric, surgeAlloy, sporePod, sand, blastCompound, pyratite, metaglass,
     beryllium, tungsten, oxide, carbide, fissileMatter, dormantCyst;
 
+    //TODO remove, these are for debugging only
+    public static final Seq<Item> serpuloItems = new Seq<>(), erekirItems = new Seq<>();
+
     public static void load(){
         copper = new Item("copper", Color.valueOf("d99d73")){{
             hardness = 1;
@@ -124,5 +128,15 @@ public class Items{
         dormantCyst = new Item("dormant-cyst", Color.valueOf("df824d")){{
             flammability = 0.1f;
         }};
+
+        serpuloItems.addAll(
+        scrap, copper, lead, graphite, coal, titanium, thorium, silicon, plastanium,
+        phaseFabric, surgeAlloy, sporePod, sand, blastCompound, pyratite, metaglass
+        );
+
+        erekirItems.addAll(
+        scrap, graphite, thorium, silicon, phaseFabric, surgeAlloy, sand,
+        beryllium, tungsten, oxide, carbide, fissileMatter, dormantCyst
+        );
     }
 }
diff --git a/core/src/mindustry/content/TechTree.java b/core/src/mindustry/content/TechTree.java
index 2edc41ed9f..c3e61ff5c8 100644
--- a/core/src/mindustry/content/TechTree.java
+++ b/core/src/mindustry/content/TechTree.java
@@ -1,6 +1,7 @@
 package mindustry.content;
 
 import arc.*;
+import arc.func.*;
 import arc.scene.style.*;
 import arc.struct.*;
 import arc.util.*;
@@ -140,6 +141,14 @@ public class TechTree{
             all.add(this);
         }
 
+        /** Recursively iterates through everything that is a child of this node. Includes itself. */
+        public void each(Cons<TechNode> consumer){
+            consumer.get(this);
+            for(var child : children){
+                child.each(consumer);
+            }
+        }
+
         public Drawable icon(){
             return icon == null ? new TextureRegionDrawable(content.uiIcon) : icon;
         }
diff --git a/core/src/mindustry/input/MobileInput.java b/core/src/mindustry/input/MobileInput.java
index 6df756df91..13e864bc80 100644
--- a/core/src/mindustry/input/MobileInput.java
+++ b/core/src/mindustry/input/MobileInput.java
@@ -76,6 +76,14 @@ public class MobileInput extends InputHandler implements GestureListener{
     /** Control building last tapped. */
     public @Nullable Building buildingTapped;
 
+    {
+        Events.on(UnitDestroyEvent.class, e -> {
+            if(e.unit != null && e.unit.isPlayer() && e.unit.getPlayer().isLocal() && e.unit.type.weapons.contains(w -> w.bullet.killShooter)){
+                manualShooting = false;
+            }
+        });
+    }
+
     //region utility methods
 
     /** Check and assign targets for a specific position. */
diff --git a/core/src/mindustry/maps/planet/ErekirPlanetGenerator.java b/core/src/mindustry/maps/planet/ErekirPlanetGenerator.java
index 76a28600cd..4bd8ea9c2c 100644
--- a/core/src/mindustry/maps/planet/ErekirPlanetGenerator.java
+++ b/core/src/mindustry/maps/planet/ErekirPlanetGenerator.java
@@ -247,7 +247,7 @@ public class ErekirPlanetGenerator extends PlanetGenerator{
             }
 
             //TODO test, different placement
-            //TODO this biome should have more blocks in gneeral
+            //TODO this biome should have more blocks in general
             if(block == Blocks.regolithWall && rand.chance(0.2) && nearAir(x, y) && !near(x, y, 3, Blocks.crystalBlocks)){
                 block = Blocks.crystalBlocks;
             }
@@ -294,7 +294,7 @@ public class ErekirPlanetGenerator extends PlanetGenerator{
 
         //it is very hot
         state.rules.attributes.set(Attribute.heat, 0.8f);
-        state.rules.environment = Env.scorching | Env.terrestrial | Env.groundWater;
+        state.rules.environment = Env.scorching | Env.terrestrial;
         Schematics.placeLaunchLoadout(spawnX, spawnY);
 
         state.rules.showSpawns = true;
diff --git a/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java b/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
index e56828db12..90c29872f4 100644
--- a/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
+++ b/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
@@ -82,13 +82,13 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             any = true;
         }
 
+        if(Structs.contains(tile.tiles, s -> sector.planet.getSector(s).id == sector.planet.startSector)) return;
+
         if(noise < 0.16){
             for(Ptile other : tile.tiles){
                 var osec = sector.planet.getSector(other);
 
-                //no sectors near start sector!
                 if(
-                    osec.id == sector.planet.startSector || //near starting sector
                     osec.generateEnemyBase && poles < 0.85 || //near other base
                     (sector.preset != null && noise < 0.11) //near preset
                 ){
diff --git a/core/src/mindustry/ui/dialogs/PlanetDialog.java b/core/src/mindustry/ui/dialogs/PlanetDialog.java
index 2e5263f42b..4011c54e3c 100644
--- a/core/src/mindustry/ui/dialogs/PlanetDialog.java
+++ b/core/src/mindustry/ui/dialogs/PlanetDialog.java
@@ -176,6 +176,10 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
             settings.put("lastplanet", state.planet.name);
         }
 
+        if(!selectable(state.planet)){
+            state.planet = Planets.serpulo;
+        }
+
         rebuildButtons();
         mode = look;
         state.otherCamPos = null;
@@ -255,7 +259,7 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         dialog.add("@sectors.captured");
     }
 
-    //TODO unimplemented, cutscene needed
+    //TODO not fully implemented, cutscene needed
     public void showPlanetLaunch(Sector sector, Cons<Sector> listener){
         selected = null;
         hovered = null;
@@ -263,11 +267,20 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         this.listener = listener;
         launchSector = sector;
 
-        //automatically select next planets; TODO pan!
+        //automatically select next planets;
         if(sector.planet.launchCandidates.size == 1){
             state.planet = sector.planet.launchCandidates.first();
             state.otherCamPos = sector.planet.position;
             state.otherCamAlpha = 0f;
+
+            //unlock and highlight sector
+            var destSec = state.planet.sectors.get(state.planet.startSector);
+            var preset = destSec.preset;
+            if(preset != null){
+                preset.unlock();
+            }
+            selected = destSec;
+            updateSelected();
         }
 
         //TODO pan over to correct planet
@@ -471,7 +484,7 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         //TODO what if any sector is selectable?
         //TODO launch criteria - which planets can be launched to? Where should this be defined? Should planets even be selectable?
         if(mode == planetLaunch) return launchSector != null && planet != launchSector.planet && launchSector.planet.launchCandidates.contains(planet);
-        return planet == state.planet || (planet.alwaysUnlocked && planet.isLandable()) || planet.sectors.contains(Sector::hasBase);
+        return (planet.alwaysUnlocked && planet.isLandable()) || planet.sectors.contains(Sector::hasBase);
     }
 
     void setup(){
@@ -690,6 +703,9 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
                 state.camPos.set(Tmp.v31.set(state.otherCamPos).lerp(state.planet.position, state.otherCamAlpha).add(state.camPos).sub(state.planet.position));
 
                 state.otherCamPos = null;
+                //announce new sector
+                newPresets.add(state.planet.sectors.get(state.planet.startSector));
+
             }
         }
 
diff --git a/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java b/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
index ea864a0064..6b2974166f 100644
--- a/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
+++ b/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
@@ -116,6 +116,7 @@ public class SettingsMenuDialog extends BaseDialog{
 
             t.button("@settings.clearresearch", Icon.trash, style, () -> {
                 ui.showConfirm("@confirm", "@settings.clearresearch.confirm", () -> {
+                    Core.settings.put("lastplanet", "serpulo");
                     universe.clearLoadoutInfo();
                     for(TechNode node : TechTree.all){
                         node.reset();
diff --git a/core/src/mindustry/world/blocks/sandbox/ItemSource.java b/core/src/mindustry/world/blocks/sandbox/ItemSource.java
index dc2cfbf2a3..ace6b1850b 100644
--- a/core/src/mindustry/world/blocks/sandbox/ItemSource.java
+++ b/core/src/mindustry/world/blocks/sandbox/ItemSource.java
@@ -81,7 +81,10 @@ public class ItemSource extends Block{
 
             while(counter >= limit){
                 items.set(outputItem, 1);
-                dump(outputItem);
+                if(dump(outputItem)){
+                    //for debugging only
+                    produced(outputItem);
+                }
                 items.set(outputItem, 0);
                 counter -= limit;
             }