diff --git a/core/src/mindustry/core/Control.java b/core/src/mindustry/core/Control.java
index eb69d4e904..7a2574ccad 100644
--- a/core/src/mindustry/core/Control.java
+++ b/core/src/mindustry/core/Control.java
@@ -412,7 +412,8 @@ public class Control implements ApplicationListener, Loadable{
                 try{
                     boolean hadNoCore = !sector.info.hasCore;
                     reloader.begin();
-                    slot.load();
+                    //pass in a sector context to make absolutely sure the correct sector is written; it may differ from what's in the meta due to remapping.
+                    slot.load(world.makeSectorContext(sector));
                     slot.setAutosave(true);
                     state.rules.sector = sector;
                     state.rules.cloudColor = sector.planet.landCloudColor;
diff --git a/core/src/mindustry/core/World.java b/core/src/mindustry/core/World.java
index 8852976c90..1ad6f1176d 100644
--- a/core/src/mindustry/core/World.java
+++ b/core/src/mindustry/core/World.java
@@ -579,10 +579,19 @@ public class World{
         }
     }
 
+    public WorldContext makeSectorContext(Sector sector){
+        return new Context(sector);
+    }
+
     private class Context implements WorldContext{
+        private Sector sector;
 
         Context(){}
 
+        Context(Sector sector){
+            this.sector = sector;
+        }
+
         @Override
         public Tile tile(int index){
             return tiles.geti(index);
@@ -614,6 +623,12 @@ public class World{
         public void end(){
             endMapLoad();
         }
+
+        @Nullable
+        @Override
+        public Sector getSector(){
+            return sector;
+        }
     }
 
     /** World context that applies filters after generation end. */
diff --git a/core/src/mindustry/game/Saves.java b/core/src/mindustry/game/Saves.java
index b14dd4cd78..7cb008d520 100644
--- a/core/src/mindustry/game/Saves.java
+++ b/core/src/mindustry/game/Saves.java
@@ -13,6 +13,7 @@ import mindustry.io.*;
 import mindustry.io.SaveIO.*;
 import mindustry.maps.Map;
 import mindustry.type.*;
+import mindustry.world.*;
 
 import java.io.*;
 import java.text.*;
@@ -69,27 +70,72 @@ public class Saves{
             }
         }
 
-        //clear saves from build <130 that had the new naval sectors.
-        saves.removeAll(s -> {
-            if(s.getSector() != null && (s.getSector().id == 108 || s.getSector().id == 216) && s.meta.build <= 130 && s.meta.build > 0){
-                s.getSector().clearInfo();
-                s.file.delete();
-                return true;
-            }
-            return false;
-        });
-
         lastSectorSave = saves.find(s -> s.isSector() && s.getName().equals(Core.settings.getString("last-sector-save", "<none>")));
 
+        ObjectSet<Sector> infoToClear = new ObjectSet<>(), remapped = new ObjectSet<>();
+
         //automatically assign sector save slots
         for(SaveSlot slot : saves){
             if(slot.getSector() != null){
-                if(slot.getSector().save != null){
-                    Log.warn("Sector @ has two corresponding saves: @ and @", slot.getSector(), slot.getSector().save.file, slot.file);
+                Sector sector = slot.getSector();
+
+                String name = slot.meta.tags.get("sectorPreset");
+                Sector remapTarget = null;
+
+                if(name != null){
+                    if(!name.isEmpty()){ //if this save had a preset defined...
+                        SectorPreset preset = content.sector(name);
+                        //...place it in the right sector according to its preset
+                        if(preset != null && preset.sector != sector){
+                            remapTarget = preset.sector;
+                        }
+                    }
+                }else{ //there was no sector preset in the meta at all, which means this is a legacy save that may need mapping
+                    SectorPreset target = content.sectors().find(s -> s.planet == sector.planet && s.originalPosition == sector.id);
+                    if(target != null && target.sector != sector){ //there is indeed a sector preset that used to have this ID, and it needs remapping!
+                        remapTarget = target.sector;
+                    }
+                }
+
+                if(remapTarget != null){
+                    //if the file name matches the destination of the remap, assume it has already been remapped, and skip the file movement procedure
+                    if(!slot.file.equals(getSectorFile(remapTarget))){
+                        Log.info("Remapping sectors: @: @ -> @", sector.id, remapTarget.id);
+
+                        //overwrite the target sector's info with the save's info
+                        Core.settings.putJson(remapTarget.planet.name + "-s-" + remapTarget.id + "-info", sector.info);
+                        remapTarget.loadInfo();
+
+                        //queue a clear of the sector that had its data moved
+                        infoToClear.add(sector);
+                        //add to the remapped list (if it was remapped, don't clear it!)
+                        remapped.add(remapTarget);
+
+                        remapTarget.save = slot;
+                        try{
+                            //move over save file
+                            slot.file.moveTo(getSectorFile(remapTarget));
+                        }catch(Exception e){
+                            Log.err("Failed to move sector files when remapping: " + sector.id + " -> " + remapTarget.id, e);
+                        }
+                    }
+
+                    remapTarget.save = slot;
+                    slot.meta.rules.sector = remapTarget;
+                }else{
+                    if(sector.save != null){
+                        Log.warn("Sector @ has two corresponding saves: @ and @", sector, sector.save.file, slot.file);
+                    }
+                    sector.save = slot;
                 }
-                slot.getSector().save = slot;
             }
         }
+
+        for(var sector : infoToClear){
+           if(!remapped.contains(sector)){
+               sector.clearInfo();
+           }
+        }
     }
 
     public @Nullable SaveSlot getLastSector(){
@@ -207,8 +253,12 @@ public class Saves{
         }
 
         public void load() throws SaveException{
+            load(world.context);
+        }
+
+        public void load(WorldContext context) throws SaveException{
             try{
-                SaveIO.load(file);
+                SaveIO.load(file, context);
                 meta = SaveIO.getMeta(file);
                 current = this;
                 totalPlaytime = meta.timePlayed;
@@ -313,6 +363,7 @@ public class Saves{
         }
 
         public @Nullable Sector getSector(){
+            //TODO remap sectors
             return meta == null || meta.rules == null ? null : meta.rules.sector;
         }
 
diff --git a/core/src/mindustry/io/SaveVersion.java b/core/src/mindustry/io/SaveVersion.java
index 558c915d1e..70cb4b3f46 100644
--- a/core/src/mindustry/io/SaveVersion.java
+++ b/core/src/mindustry/io/SaveVersion.java
@@ -140,6 +140,7 @@ public abstract class SaveVersion extends SaveFileReader{
             "wavetime", state.wavetime,
             "stats", JsonIO.write(state.stats),
             "rules", JsonIO.write(state.rules),
+            "sectorPreset", state.rules.sector != null && state.rules.sector.preset != null ? state.rules.sector.preset.name : "", //empty string is a placeholder for null (null is possible but may be finicky)
             "locales", JsonIO.write(state.mapLocales),
             "mods", JsonIO.write(mods.getModStrings().toArray(String.class)),
             "controlGroups", headless || control == null ? "null" : JsonIO.write(control.input.controlGroups),
diff --git a/core/src/mindustry/type/SectorPreset.java b/core/src/mindustry/type/SectorPreset.java
index ea00349fa2..220ffc2ec2 100644
--- a/core/src/mindustry/type/SectorPreset.java
+++ b/core/src/mindustry/type/SectorPreset.java
@@ -34,6 +34,8 @@ public class SectorPreset extends UnlockableContent{
     public boolean allowLaunchLoadout = false;
     /** If true, switches to attack mode after waves end. */
     public boolean attackAfterWaves = false;
+    /** The original position of this sector; used for migration. Internal use for vanilla campaign only! */
+    public int originalPosition;
 
     public SectorPreset(String name, Planet planet, int sector){
         this(name, null, planet, sector);
@@ -61,6 +63,7 @@ public class SectorPreset extends UnlockableContent{
 
     public void initialize(Planet planet, int sector){
         this.planet = planet;
+        this.originalPosition = sector;
         //auto remap based on data
         var data = planet.getData();
         if(data != null){