diff --git a/SubstrateCS/Source/AlphaWorld.cs b/SubstrateCS/Source/AlphaWorld.cs
index 9599b42..9a171f5 100644
--- a/SubstrateCS/Source/AlphaWorld.cs
+++ b/SubstrateCS/Source/AlphaWorld.cs
@@ -19,15 +19,15 @@ namespace Substrate
 
         private Level _level;
 
-        private Dictionary<int, AlphaChunkManager> _chunkMgrs;
-        private Dictionary<int, BlockManager> _blockMgrs;
+        private Dictionary<string, AlphaChunkManager> _chunkMgrs;
+        private Dictionary<string, BlockManager> _blockMgrs;
 
         private PlayerManager _playerMan;
 
         private AlphaWorld ()
         {
-            _chunkMgrs = new Dictionary<int, AlphaChunkManager>();
-            _blockMgrs = new Dictionary<int, BlockManager>();
+            _chunkMgrs = new Dictionary<string, AlphaChunkManager>();
+            _blockMgrs = new Dictionary<string, BlockManager>();
         }
 
         /// <summary>
@@ -99,7 +99,7 @@ namespace Substrate
         {
             _level.Save();
 
-            foreach (KeyValuePair<int, AlphaChunkManager> cm in _chunkMgrs) {
+            foreach (KeyValuePair<string, AlphaChunkManager> cm in _chunkMgrs) {
                 cm.Value.Save();
             }
         }
@@ -128,6 +128,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IBlockManager GetBlockManagerVirt (int dim)
+        {
+            return GetBlockManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IBlockManager GetBlockManagerVirt (string dim)
         {
             BlockManager rm;
             if (_blockMgrs.TryGetValue(dim, out rm)) {
@@ -140,6 +145,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IChunkManager GetChunkManagerVirt (int dim)
+        {
+            return GetChunkManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IChunkManager GetChunkManagerVirt (string dim)
         {
             AlphaChunkManager rm;
             if (_chunkMgrs.TryGetValue(dim, out rm)) {
@@ -163,11 +173,19 @@ namespace Substrate
             return _playerMan;
         }
 
-        private void OpenDimension (int dim)
+        private string DimensionFromInt (int dim)
+        {
+            if (dim == Dimension.DEFAULT)
+                return "";
+            else
+                return "DIM" + dim;
+        }
+
+        private void OpenDimension (string dim)
         {
             string path = Path;
-            if (dim != Dimension.DEFAULT) {
-                path = IO.Path.Combine(path, "DIM" + dim);
+            if (!String.IsNullOrEmpty(dim)) {
+                path = IO.Path.Combine(path, dim);
             }
 
             if (!Directory.Exists(path)) {
diff --git a/SubstrateCS/Source/AnvilWorld.cs b/SubstrateCS/Source/AnvilWorld.cs
index e59b024..b74ce93 100644
--- a/SubstrateCS/Source/AnvilWorld.cs
+++ b/SubstrateCS/Source/AnvilWorld.cs
@@ -22,11 +22,11 @@ namespace Substrate
 
         private Level _level;
 
-        private Dictionary<int, AnvilRegionManager> _regionMgrs;
-        private Dictionary<int, RegionChunkManager> _chunkMgrs;
-        private Dictionary<int, BlockManager> _blockMgrs;
+        private Dictionary<string, AnvilRegionManager> _regionMgrs;
+        private Dictionary<string, RegionChunkManager> _chunkMgrs;
+        private Dictionary<string, BlockManager> _blockMgrs;
 
-        private Dictionary<int, ChunkCache> _caches;
+        private Dictionary<string, ChunkCache> _caches;
 
         private PlayerManager _playerMan;
         private BetaDataManager _dataMan;
@@ -35,11 +35,11 @@ namespace Substrate
 
         private AnvilWorld ()
         {
-            _regionMgrs = new Dictionary<int, AnvilRegionManager>();
-            _chunkMgrs = new Dictionary<int, RegionChunkManager>();
-            _blockMgrs = new Dictionary<int, BlockManager>();
+            _regionMgrs = new Dictionary<string, AnvilRegionManager>();
+            _chunkMgrs = new Dictionary<string, RegionChunkManager>();
+            _blockMgrs = new Dictionary<string, BlockManager>();
 
-            _caches = new Dictionary<int, ChunkCache>();
+            _caches = new Dictionary<string, ChunkCache>();
         }
 
         /// <summary>
@@ -75,6 +75,11 @@ namespace Substrate
             return GetBlockManagerVirt(dim) as BlockManager;
         }
 
+        public new BlockManager GetBlockManager (string dim)
+        {
+            return GetBlockManagerVirt(dim) as BlockManager;
+        }
+
         /// <summary>
         /// Gets a <see cref="RegionChunkManager"/> for the default dimension.
         /// </summary>
@@ -96,6 +101,11 @@ namespace Substrate
             return GetChunkManagerVirt(dim) as RegionChunkManager;
         }
 
+        public new RegionChunkManager GetChunkManager (string dim)
+        {
+            return GetChunkManagerVirt(dim) as RegionChunkManager;
+        }
+
         /// <summary>
         /// Gets a <see cref="RegionManager"/> for the default dimension.
         /// </summary>
@@ -115,6 +125,11 @@ namespace Substrate
         /// <remarks>Regions are a higher-level unit of organization for blocks unique to worlds created in Beta 1.3 and beyond.
         /// Consider using the <see cref="RegionChunkManager"/> if you are interested in working with blocks.</remarks>
         public AnvilRegionManager GetRegionManager (int dim)
+        {
+            return GetRegionManager(DimensionFromInt(dim));
+        }
+
+        public AnvilRegionManager GetRegionManager (string dim)
         {
             AnvilRegionManager rm;
             if (_regionMgrs.TryGetValue(dim, out rm)) {
@@ -149,7 +164,7 @@ namespace Substrate
         {
             _level.Save();
 
-            foreach (KeyValuePair<int, RegionChunkManager> cm in _chunkMgrs) {
+            foreach (KeyValuePair<string, RegionChunkManager> cm in _chunkMgrs) {
                 cm.Value.Save();
             }
         }
@@ -169,6 +184,11 @@ namespace Substrate
         /// <param name="dim">The id of a dimension to look up.</param>
         /// <returns>The <see cref="ChunkCache"/> for the given dimension, or null if the dimension was not found.</returns>
         public ChunkCache GetChunkCache (int dim)
+        {
+            return GetChunkCache(DimensionFromInt(dim));  
+        }
+
+        public ChunkCache GetChunkCache (string dim)
         {
             if (_caches.ContainsKey(dim)) {
                 return _caches[dim];
@@ -230,6 +250,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IBlockManager GetBlockManagerVirt (int dim)
+        {
+            return GetBlockManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IBlockManager GetBlockManagerVirt(string dim)
         {
             BlockManager rm;
             if (_blockMgrs.TryGetValue(dim, out rm)) {
@@ -242,6 +267,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IChunkManager GetChunkManagerVirt (int dim)
+        {
+            return GetChunkManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IChunkManager GetChunkManagerVirt (string dim)
         {
             RegionChunkManager rm;
             if (_chunkMgrs.TryGetValue(dim, out rm)) {
@@ -276,14 +306,22 @@ namespace Substrate
             return _dataMan;
         }
 
-        private void OpenDimension (int dim)
+        private string DimensionFromInt (int dim)
+        {
+            if (dim == Dimension.DEFAULT)
+                return "";
+            else
+                return "DIM" + dim;
+        }
+
+        private void OpenDimension (string dim)
         {
             string path = Path;
-            if (dim == Dimension.DEFAULT) {
+            if (String.IsNullOrEmpty(dim)) {
                 path = IO.Path.Combine(path, _REGION_DIR);
             }
             else {
-                path = IO.Path.Combine(path, "DIM" + dim);
+                path = IO.Path.Combine(path, dim);
                 path = IO.Path.Combine(path, _REGION_DIR);
             }
 
diff --git a/SubstrateCS/Source/BetaWorld.cs b/SubstrateCS/Source/BetaWorld.cs
index bde0bd1..14447d8 100644
--- a/SubstrateCS/Source/BetaWorld.cs
+++ b/SubstrateCS/Source/BetaWorld.cs
@@ -22,11 +22,11 @@ namespace Substrate
 
         private Level _level;
 
-        private Dictionary<int, BetaRegionManager> _regionMgrs;
-        private Dictionary<int, RegionChunkManager> _chunkMgrs;
-        private Dictionary<int, BlockManager> _blockMgrs;
+        private Dictionary<string, BetaRegionManager> _regionMgrs;
+        private Dictionary<string, RegionChunkManager> _chunkMgrs;
+        private Dictionary<string, BlockManager> _blockMgrs;
 
-        private Dictionary<int, ChunkCache> _caches;
+        private Dictionary<string, ChunkCache> _caches;
 
         private PlayerManager _playerMan;
         private BetaDataManager _dataMan;
@@ -35,11 +35,11 @@ namespace Substrate
 
         private BetaWorld ()
         {
-            _regionMgrs = new Dictionary<int, BetaRegionManager>();
-            _chunkMgrs = new Dictionary<int, RegionChunkManager>();
-            _blockMgrs = new Dictionary<int, BlockManager>();
+            _regionMgrs = new Dictionary<string, BetaRegionManager>();
+            _chunkMgrs = new Dictionary<string, RegionChunkManager>();
+            _blockMgrs = new Dictionary<string, BlockManager>();
 
-            _caches = new Dictionary<int, ChunkCache>();
+            _caches = new Dictionary<string, ChunkCache>();
         }
 
         /// <summary>
@@ -75,6 +75,11 @@ namespace Substrate
             return GetBlockManagerVirt(dim) as BlockManager;
         }
 
+        public new BlockManager GetBlockManager (string dim)
+        {
+            return GetBlockManagerVirt(dim) as BlockManager;
+        }
+
         /// <summary>
         /// Gets a <see cref="RegionChunkManager"/> for the default dimension.
         /// </summary>
@@ -96,6 +101,11 @@ namespace Substrate
             return GetChunkManagerVirt(dim) as RegionChunkManager;
         }
 
+        public new RegionChunkManager GetChunkManager (string dim)
+        {
+            return GetChunkManagerVirt(dim) as RegionChunkManager;
+        }
+
         /// <summary>
         /// Gets a <see cref="RegionManager"/> for the default dimension.
         /// </summary>
@@ -115,6 +125,11 @@ namespace Substrate
         /// <remarks>Regions are a higher-level unit of organization for blocks unique to worlds created in Beta 1.3 and beyond.
         /// Consider using the <see cref="RegionChunkManager"/> if you are interested in working with blocks.</remarks>
         public BetaRegionManager GetRegionManager (int dim)
+        {
+            return GetRegionManager(DimensionFromInt(dim));
+        }
+
+        public BetaRegionManager GetRegionManager (string dim)
         {
             BetaRegionManager rm;
             if (_regionMgrs.TryGetValue(dim, out rm)) {
@@ -149,7 +164,7 @@ namespace Substrate
         {
             _level.Save();
 
-            foreach (KeyValuePair<int, RegionChunkManager> cm in _chunkMgrs) {
+            foreach (KeyValuePair<string, RegionChunkManager> cm in _chunkMgrs) {
                 cm.Value.Save();
             }
         }
@@ -169,6 +184,11 @@ namespace Substrate
         /// <param name="dim">The id of a dimension to look up.</param>
         /// <returns>The <see cref="ChunkCache"/> for the given dimension, or null if the dimension was not found.</returns>
         public ChunkCache GetChunkCache (int dim)
+        {
+            return GetChunkCache(DimensionFromInt(dim));
+        }
+
+        public ChunkCache GetChunkCache (string dim)
         {
             if (_caches.ContainsKey(dim)) {
                 return _caches[dim];
@@ -230,6 +250,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IBlockManager GetBlockManagerVirt (int dim)
+        {
+            return GetBlockManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IBlockManager GetBlockManagerVirt (string dim)
         {
             BlockManager rm;
             if (_blockMgrs.TryGetValue(dim, out rm)) {
@@ -242,6 +267,11 @@ namespace Substrate
 
         /// <exclude/>
         protected override IChunkManager GetChunkManagerVirt (int dim)
+        {
+            return GetChunkManagerVirt(DimensionFromInt(dim));
+        }
+
+        protected override IChunkManager GetChunkManagerVirt (string dim)
         {
             RegionChunkManager rm;
             if (_chunkMgrs.TryGetValue(dim, out rm)) {
@@ -276,14 +306,22 @@ namespace Substrate
             return _dataMan;
         }
 
-        private void OpenDimension (int dim)
+        private string DimensionFromInt (int dim)
+        {
+            if (dim == Dimension.DEFAULT)
+                return "";
+            else
+                return "DIM" + dim;
+        }
+
+        private void OpenDimension (string dim)
         {
             string path = Path;
-            if (dim == Dimension.DEFAULT) {
+            if (String.IsNullOrEmpty(dim)) {
                 path = IO.Path.Combine(path, _REGION_DIR);
             }
             else {
-                path = IO.Path.Combine(path, "DIM" + dim);
+                path = IO.Path.Combine(path, dim);
                 path = IO.Path.Combine(path, _REGION_DIR);
             }
 
diff --git a/SubstrateCS/Source/NbtWorld.cs b/SubstrateCS/Source/NbtWorld.cs
index f7c2d6e..bbb3100 100644
--- a/SubstrateCS/Source/NbtWorld.cs
+++ b/SubstrateCS/Source/NbtWorld.cs
@@ -73,6 +73,11 @@ namespace Substrate
             return GetBlockManagerVirt(dim);
         }
 
+        public IBlockManager GetBlockManager (string dim)
+        {
+            return GetBlockManagerVirt(dim);
+        }
+
         /// <summary>
         /// Gets an <see cref="IChunkManager"/> for the default dimension.
         /// </summary>
@@ -92,6 +97,11 @@ namespace Substrate
             return GetChunkManagerVirt(dim);
         }
 
+        public IChunkManager GetChunkManager (string dim)
+        {
+            return GetChunkManagerVirt(dim);
+        }
+
         /// <summary>
         /// Gets an <see cref="IPlayerManager"/> for maanging players on multiplayer worlds.
         /// </summary>
@@ -162,6 +172,16 @@ namespace Substrate
         /// <returns>An <see cref="IChunkManager"/> for the given dimension in the world.</returns>
         protected abstract IChunkManager GetChunkManagerVirt (int dim);
 
+        protected virtual IBlockManager GetBlockManagerVirt (string dim)
+        {
+            throw new NotImplementedException();
+        }
+
+        protected virtual IChunkManager GetChunkManagerVirt (string dim)
+        {
+            throw new NotImplementedException();
+        }
+
         /// <summary>
         /// Virtual implementor of <see cref="GetPlayerManager"/>.
         /// </summary>