diff --git a/src/main/java/com/volmit/iris/engine/object/IrisDimension.java b/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
index 22f453a63..55124473a 100644
--- a/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
+++ b/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
@@ -70,6 +70,10 @@ public class IrisDimension extends IrisRegistrant {
     @Required
     @Desc("The human readable name of this dimension")
     private String name = "A Dimension";
+    @MinNumber(1)
+    @MaxNumber(2032)
+    @Desc("Maximum height at which players can be teleported to through gameplay.")
+    private int logicalHeight = 256;
     @RegistryListResource(IrisJigsawStructure.class)
     @Desc("If defined, Iris will place the given jigsaw structure where minecraft should place the overworld stronghold.")
     private String stronghold;
@@ -238,13 +242,11 @@ public class IrisDimension extends IrisRegistrant {
     private int caveLavaHeight = 8;
 
     public int getMaxHeight() {
-        return 320;
-        // return (int) getDimensionHeight().getMax();
+        return (int) getDimensionHeight().getMax();
     }
 
     public int getMinHeight() {
-        return -64;
-        // return (int) getDimensionHeight().getMin();
+        return (int) getDimensionHeight().getMin();
     }
 
     public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data) {
@@ -282,6 +284,10 @@ public class IrisDimension extends IrisRegistrant {
         });
     }
 
+    public int getFluidHeight() {
+        return fluidHeight - (int)dimensionHeight.getMin();
+    }
+
     public CNG getCoordFracture(RNG rng, int signature) {
         return coordFracture.aquire(() ->
         {
@@ -399,6 +405,21 @@ public class IrisDimension extends IrisRegistrant {
             }
         }
 
+        if(!dimensionHeight.equals(new IrisRange(-64, 320))) {
+            File dimType = new File(datapacks, "iris/data/minecraft/dimension_type/" + getLoadKey().toLowerCase() + ".json");
+            if(!dimType.exists())
+                changed = true;
+
+            Iris.verbose("    Installing Data Pack Dimension Type: " + dimType.getPath());
+            dimType.getParentFile().mkdirs();
+            try {
+                IO.writeAll(dimType, generateDatapackJson());
+            } catch(IOException e) {
+                Iris.reportError(e);
+                e.printStackTrace();
+            }
+        }
+
         if(write) {
             File mcm = new File(datapacks, "iris/pack.mcmeta");
             try {
@@ -434,4 +455,30 @@ public class IrisDimension extends IrisRegistrant {
     public void scanForErrors(JSONObject p, VolmitSender sender) {
 
     }
+
+    private String generateDatapackJson() {
+        JSONObject obj = new JSONObject(DP_OVERWORLD_DEFAULT);
+        obj.put("min_y", dimensionHeight.getMin());
+        obj.put("height", dimensionHeight.getMax() - dimensionHeight.getMin());
+        obj.put("logical_height", logicalHeight);
+        return obj.toString(4);
+    }
+
+    private static final String DP_OVERWORLD_DEFAULT = """
+            {
+                "name": "minecraft:overworld",
+                "ultrawarm": false,
+                "natural": true,
+                "coordinate_scale": 1.0,
+                "has_skylight": true,
+                "has_ceiling": false,
+                "ambient_light": 0,
+                "fixed_time": false,
+                "piglin_safe": false,
+                "bed_works": true,
+                "respawn_anchor_works": false,
+                "has_raids": true,
+                "infiniburn": "infiniburn_overworld",
+                "effects": "minecraft:overworld"
+            }""";
 }
diff --git a/src/main/java/com/volmit/iris/engine/object/IrisLoot.java b/src/main/java/com/volmit/iris/engine/object/IrisLoot.java
index 26c637411..d4678342e 100644
--- a/src/main/java/com/volmit/iris/engine/object/IrisLoot.java
+++ b/src/main/java/com/volmit/iris/engine/object/IrisLoot.java
@@ -18,6 +18,7 @@
 
 package com.volmit.iris.engine.object;
 
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import com.volmit.iris.Iris;
 import com.volmit.iris.engine.data.cache.AtomicCache;
 import com.volmit.iris.engine.object.annotations.ArrayType;
@@ -28,17 +29,25 @@ import com.volmit.iris.engine.object.annotations.RegistryListItemType;
 import com.volmit.iris.engine.object.annotations.Required;
 import com.volmit.iris.engine.object.annotations.Snippet;
 import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
 import com.volmit.iris.util.data.B;
 import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.format.Form;
+import com.volmit.iris.util.json.JSONObject;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.nbt.io.NBTUtil;
 import com.volmit.iris.util.noise.CNG;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.experimental.Accessors;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtUtils;
+import net.minecraft.nbt.TagParser;
+import net.minecraft.server.commands.GiveCommand;
 import org.bukkit.DyeColor;
 import org.bukkit.Material;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.Damageable;
@@ -102,6 +111,8 @@ public class IrisLoot {
     private DyeColor dyeColor = null;
     @Desc("The leather armor color")
     private String leatherColor = null;
+    @Desc("Defines a custom NBT Tag for the item.")
+    private KMap<String, Object> customNbt;
 
     public Material getType() {
         return B.getMaterial(type);
@@ -173,7 +184,7 @@ public class IrisLoot {
             }
 
             is.setItemMeta(m);
-            return is;
+            return applyCustomNbt(is);
         } catch(Throwable e) {
             Iris.reportError(e);
 
@@ -250,13 +261,23 @@ public class IrisLoot {
 
                 m.setLore(lore);
                 is.setItemMeta(m);
-                return is;
+                return applyCustomNbt(is);
             } catch(Throwable e) {
                 Iris.reportError(e);
-
             }
         }
 
         return null;
     }
+
+    private ItemStack applyCustomNbt(ItemStack stack) throws CommandSyntaxException {
+        if(customNbt == null || customNbt.isEmpty())
+            return stack;
+        net.minecraft.world.item.ItemStack s = CraftItemStack.asNMSCopy(stack);
+        CompoundTag tag = TagParser.parseTag(new JSONObject(customNbt).toString());
+        tag.merge(s.getOrCreateTag());
+        s.setTag(tag);
+        System.out.println(customNbt);
+        return CraftItemStack.asBukkitCopy(s);
+    }
 }