diff --git a/patches/server/0023-Shared-DataStorage-for-maps.patch b/patches/server/0023-Shared-DataStorage-for-maps.patch
new file mode 100644
index 000000000..508529e47
--- /dev/null
+++ b/patches/server/0023-Shared-DataStorage-for-maps.patch
@@ -0,0 +1,110 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Cryptite <cryptite@gmail.com>
+Date: Fri, 18 Nov 2022 08:37:19 -0600
+Subject: [PATCH] Shared DataStorage for maps
+
+
+diff --git a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
+index a1bd848bbf924267e74e61dabdb840628712b1ad..8ffacd63c964b823ac607a05d3388e036fab0b52 100644
+--- a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
++++ b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
+@@ -356,6 +356,7 @@ public class WorldConfiguration extends ConfigurationPart {
+     public class Maps extends ConfigurationPart {
+         public int itemFrameCursorLimit = 128;
+         public int itemFrameCursorUpdateInterval = 10;
++        public String sharedDataFolder; // Slice
+     }
+ 
+     public Fixes fixes;
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 571753395ecfe82e3c95ad7f322981991ab0c94d..3aac19995956d0d0116cba0bc1412fb9e8f4c2ad 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -227,6 +227,8 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         return thr;
+     }
+ 
++    private @Nullable DimensionDataStorage sharedDataStorage; // Slice
++
+     @Override public LevelChunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
+         return this.chunkSource.getChunkAtIfLoadedImmediately(x, z); // Paper
+     }
+@@ -605,6 +607,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+         this.chunkTaskScheduler = new io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler(this, io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.workerThreads); // Paper - rewrite chunk system
+         this.entityLookup = new io.papermc.paper.chunk.system.entity.EntityLookup(this, new EntityCallbacks()); // Paper - rewrite chunk system
++
++        String sharedDataFolder = paperConfig().maps.sharedDataFolder;
++        if (sharedDataFolder != "") {
++            java.io.File sharedDir = new java.io.File(sharedDataFolder);
++            sharedDir.mkdirs();
++            this.sharedDataStorage = new DimensionDataStorage(sharedDir, datafixer);
++        }
+     }
+ 
+     public void setWeatherParameters(int clearDuration, int rainDuration, boolean raining, boolean thundering) {
+@@ -1318,6 +1327,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+             }// Paper
+             // Paper - rewrite chunk system - entity saving moved into ChunkHolder
+ 
++            if (sharedDataStorage != null) sharedDataStorage.save();
+         } else if (close) { chunkproviderserver.close(false); } // Paper - rewrite chunk system
+ 
+         // CraftBukkit start - moved from MinecraftServer.saveChunks
+@@ -1944,11 +1954,17 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         return this.getChunkSource().getDataStorage();
+     }
+ 
++    // Slice start
++    public DimensionDataStorage getMapDataStorage() {
++        return sharedDataStorage != null ? sharedDataStorage : this.getChunkSource().getDataStorage();
++    }
++    // Slice end
++
+     @Nullable
+     @Override
+     public MapItemSavedData getMapData(String id) {
+         // CraftBukkit start
+-        return (MapItemSavedData) this.getServer().overworld().getDataStorage().get((nbttagcompound) -> {
++        return (MapItemSavedData) getMapDataStorage().get((nbttagcompound) -> { // Slice
+             // We only get here when the data file exists, but is not a valid map
+             MapItemSavedData newMap = MapItemSavedData.load(nbttagcompound);
+             newMap.id = id;
+@@ -1962,12 +1978,22 @@ public class ServerLevel extends Level implements WorldGenLevel {
+     @Override
+     public void setMapData(String id, MapItemSavedData state) {
+         state.id = id; // CraftBukkit
+-        this.getServer().overworld().getDataStorage().set(id, state);
++        getMapDataStorage().set(id, state); // Slice
+     }
+ 
+     @Override
+     public int getFreeMapId() {
+-        return ((MapIndex) this.getServer().overworld().getDataStorage().computeIfAbsent(MapIndex::load, MapIndex::new, "idcounts")).getFreeAuxValueForMap();
++        // Slice start
++        DimensionDataStorage storage = getMapDataStorage();
++        MapIndex mapIndex = storage.readSavedData(MapIndex::load, "idcounts");
++        if (mapIndex == null) {
++            mapIndex = new MapIndex();
++        }
++        int newId = mapIndex.getFreeAuxValueForMap();
++        storage.set("idcounts", mapIndex);
++        storage.save();
++        return newId;
++        // Slice end
+     }
+ 
+     // Paper start - helper function for configurable spawn radius
+diff --git a/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java b/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
+index 2513069f4ffe594857762ef51f1b9a078b8b1d17..88b13bfa3393d9901c8a1b62bcc37f03919d747b 100644
+--- a/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
++++ b/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
+@@ -58,7 +58,7 @@ public class DimensionDataStorage {
+     }
+ 
+     @Nullable
+-    private <T extends SavedData> T readSavedData(Function<CompoundTag, T> readFunction, String id) {
++    public <T extends SavedData> T readSavedData(Function<CompoundTag, T> readFunction, String id) { // Slice private -> public
+         try {
+             File file = this.getDataFile(id);
+             if (file.exists()) {