diff --git a/core/src/main/resources/datapack/data/ascendancy/.gitkeep b/core/src/main/resources/datapack/data/ascendancy/.gitkeep
deleted file mode 100644
index 71196e5..0000000
--- a/core/src/main/resources/datapack/data/ascendancy/.gitkeep
+++ /dev/null
@@ -1,4 +0,0 @@
-# Ascendancy Datapack
-
-We can delete this file when content is added to the datapack.
-For now, it's only here to reserve the namespace to avoid future confusion.
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension/abyss.json b/core/src/main/resources/datapack/data/ascendancy/dimension/abyss.json
new file mode 100644
index 0000000..6a756fb
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension/abyss.json
@@ -0,0 +1,26 @@
+{
+  "type": "ascendancy:world_abyss",
+  "generator": {
+    "type": "minecraft:flat",
+    "settings": {
+      "biome": "ascendancy:layer_abyss",
+      "lakes": false,
+      "features": false,
+      "layers": [
+        {
+          "height": 64,
+          "block": "minecraft:air"
+        },
+        {
+          "height": 1,
+          "block": "minecraft:barrier"
+        },
+        {
+          "height": 319,
+          "block": "minecraft:air"
+        }
+      ],
+      "structure_overrides": []
+    }
+  }
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension/oblivion.json b/core/src/main/resources/datapack/data/ascendancy/dimension/oblivion.json
new file mode 100644
index 0000000..93d6ec1
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension/oblivion.json
@@ -0,0 +1,26 @@
+{
+  "type": "ascendancy:world_oblivion",
+  "generator": {
+    "type": "minecraft:flat",
+    "settings": {
+      "biome": "ascendancy:layer_oblivion",
+      "lakes": false,
+      "features": false,
+      "layers": [
+        {
+          "height": 64,
+          "block": "minecraft:air"
+        },
+        {
+          "height": 1,
+          "block": "minecraft:barrier"
+        },
+        {
+          "height": 319,
+          "block": "minecraft:air"
+        }
+      ],
+      "structure_overrides": []
+    }
+  }
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension/self.json b/core/src/main/resources/datapack/data/ascendancy/dimension/self.json
new file mode 100644
index 0000000..2632fbb
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension/self.json
@@ -0,0 +1,26 @@
+{
+  "type": "ascendancy:world_self",
+  "generator": {
+    "type": "minecraft:flat",
+    "settings": {
+      "biome": "ascendancy:layer_self",
+      "lakes": false,
+      "features": false,
+      "layers": [
+        {
+          "height": 64,
+          "block": "minecraft:air"
+        },
+        {
+          "height": 1,
+          "block": "minecraft:barrier"
+        },
+        {
+          "height": 319,
+          "block": "minecraft:air"
+        }
+      ],
+      "structure_overrides": []
+    }
+  }
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_abyss.json b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_abyss.json
new file mode 100644
index 0000000..15a2e9f
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_abyss.json
@@ -0,0 +1,14 @@
+{
+  "has_skylight": false,
+  "has_ceiling": true,
+  "has_ender_dragon_fight": false,
+  "coordinate_scale": 16,
+  "ambient_light": 0.4,
+  "logical_height": 384,
+  "skybox": "none",
+  "infiniburn": "#minecraft:infiniburn_end",
+  "min_y": -64,
+  "height": 384,
+  "monster_spawn_light_level": 0,
+  "monster_spawn_block_light_limit": 0
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_oblivion.json b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_oblivion.json
new file mode 100644
index 0000000..fea1922
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_oblivion.json
@@ -0,0 +1,14 @@
+{
+  "has_skylight": false,
+  "has_ceiling": true,
+  "has_ender_dragon_fight": false,
+  "coordinate_scale": 32,
+  "ambient_light": 0.4,
+  "logical_height": 384,
+  "skybox": "none",
+  "infiniburn": "#minecraft:infiniburn_end",
+  "min_y": -64,
+  "height": 384,
+  "monster_spawn_light_level": 0,
+  "monster_spawn_block_light_limit": 0
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_self.json b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_self.json
new file mode 100644
index 0000000..8b2294f
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/dimension_type/world_self.json
@@ -0,0 +1,15 @@
+{
+  "has_skylight": false,
+  "has_ceiling": true,
+  "has_ender_dragon_fight": false,
+  "coordinate_scale": 128,
+  "ambient_light": 0.4,
+  "has_fixed_time": true,
+  "logical_height": 384,
+  "skybox": "none",
+  "infiniburn": "#minecraft:infiniburn_end",
+  "min_y": -64,
+  "height": 384,
+  "monster_spawn_light_level": 0,
+  "monster_spawn_block_light_limit": 0
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_abyss.json b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_abyss.json
new file mode 100644
index 0000000..9fbf258
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_abyss.json
@@ -0,0 +1,18 @@
+{
+  "temperature": 0.5,
+  "downfall": 0.5,
+  "has_precipitation": false,
+  "temperature_modifier": "none",
+  "creature_spawn_probability": 0,
+  "effects": {
+    "water_color": 0,
+    "grass_color": 6776679,
+    "foliage_color": 6776679,
+    "dry_foliage_color": 0,
+    "grass_color_modifier": "none"
+  },
+  "spawners": {},
+  "spawn_costs": {},
+  "carvers": [],
+  "features": []
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_oblivion.json b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_oblivion.json
new file mode 100644
index 0000000..264cf3f
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_oblivion.json
@@ -0,0 +1,18 @@
+{
+  "temperature": 0.5,
+  "downfall": 0.5,
+  "has_precipitation": false,
+  "temperature_modifier": "none",
+  "creature_spawn_probability": 0,
+  "effects": {
+    "water_color": 6776679,
+    "grass_color": 12566463,
+    "foliage_color": 12566463,
+    "dry_foliage_color": 16777215,
+    "grass_color_modifier": "none"
+  },
+  "spawners": {},
+  "spawn_costs": {},
+  "carvers": [],
+  "features": []
+}
\ No newline at end of file
diff --git a/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_self.json b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_self.json
new file mode 100644
index 0000000..bf7b9eb
--- /dev/null
+++ b/core/src/main/resources/datapack/data/ascendancy/worldgen/biome/layer_self.json
@@ -0,0 +1,18 @@
+{
+  "temperature": 0.5,
+  "downfall": 0.5,
+  "has_precipitation": false,
+  "temperature_modifier": "none",
+  "creature_spawn_probability": 0,
+  "effects": {
+    "water_color": 16777215,
+    "grass_color": 16777215,
+    "foliage_color": 16777215,
+    "dry_foliage_color": 16777215,
+    "grass_color_modifier": "none"
+  },
+  "spawners": {},
+  "spawn_costs": {},
+  "carvers": [],
+  "features": []
+}
\ No newline at end of file