diff --git a/dimensions/overworld.json b/dimensions/overworld.json
index 9a720fbe..cc3eb4cb 100644
--- a/dimensions/overworld.json
+++ b/dimensions/overworld.json
@@ -34,9 +34,13 @@
     "regionZoom": 6.15,
     "aggressiveBiomeReshuffle": true,
     "regions": [
-        "high-temperature",
-        "mid-temperature",
-        "low-temperature"
+        "frozen",
+        "hot",
+        "mushroom",
+        "temperate",
+        "tropical",
+        "swamp",
+        "tundra"
     ],
     "carving": {"caves": [
         {
diff --git a/regions/low-temperature.json b/regions/frozen.json
similarity index 80%
rename from regions/low-temperature.json
rename to regions/frozen.json
index 17c78cd0..43463481 100644
--- a/regions/low-temperature.json
+++ b/regions/frozen.json
@@ -1,7 +1,7 @@
 {
-    "name": "High Temperature",
-    "color": "#FFFF00",
-    "rarity": 3,
+    "name": "Frozen",
+    "color": "#44C3D1",
+    "rarity": 1,
     "landBiomes": [
         "frozen/plains",
         "frozen/pines",
@@ -10,25 +10,21 @@
         "frozen/redwood-forest",
         "frozen/hills",
         "frozen/pine-plains",
-        "frozen/spruce-plains",
-        "tundra/taiga",
-        "tundra/redwood-forest",
-        "tundra/sequia-redwoods",
-        "tundra/magic-forest",
-        "tundra/autumn",
-        "tundra/forest",
-        "tundra/spruce-denmyre",
-        "tundra/mountains",
-        "tundra/mountains",
-        "tundra/mountains-extended-cliffs",
-        "mountain/hills",
-        "mountain/forest-extended",
-        "tundra/frosted-peaks",
-        "mountain/forest",
-        "mountain/plains",
-        "mountain/cliffs",
-        "mountain/mountain",
-        "tundra/ether"
+        "frozen/spruce-plains"
+    ],
+    "jigsawStructures": [
+        {
+            "structure": "dungeon-skeleton",
+            "rarity": 250
+        },
+        {
+            "structure": "dungeon-spider",
+            "rarity": 250
+        },
+        {
+            "structure": "dungeon-zombie",
+            "rarity": 250
+        }
     ],
     "objects": [
         {
@@ -111,21 +107,10 @@
             "carvingSupport": "SURFACE_ONLY"
         }
     ],
-    "shoreBiomes": [
-        "frozen/shore/beach",
-        "tundra/shore/beach",
-        "tundra/shore/beach-stone"
-        ],
+    "shoreBiomes": ["frozen/shore/beach"],
     "seaBiomes": [
         "frozen/sea/frozen-river-ice",
-        "frozen/sea/ocean",
-        "mountain/sea/river"
-    ],
-    "riverBiomes": [
-        "tundra/sea/river",
-        "tundra/sea/river-rocky",
-        "mountain/sea/river",
-        "mountain/sea/river-soft"
+        "frozen/sea/ocean"
     ],
     "deposits": [
         {
@@ -157,11 +142,7 @@
         "frozen/passive",
         "frozen/hostile",
         "frozen/cave",
-        "frozen/water",
-        "tundra/passive",
-        "tundra/hostile",
-        "tundra/cave",
-        "tundra/water"
+        "frozen/water"
     ],
     "carving": {
         "ravines": [{
@@ -195,6 +176,6 @@
     "riverThickness": 0.006,
     "loot": {
         "mode": "REPLACE",
-        "tables": ["frozen/clutter", "frozen/food", "snow/clutter","cold/food","cold/treasure","snow/clutter"]
+        "tables": ["frozen/clutter", "frozen/food", "snow/clutter"]
     }
-}
\ No newline at end of file
+}
diff --git a/regions/high-temperature.json b/regions/high-temperature.json
deleted file mode 100644
index 9561d967..00000000
--- a/regions/high-temperature.json
+++ /dev/null
@@ -1,48 +0,0 @@
-{
-    "name": "High Temperature",
-    "color": "#FFFF00",
-    "rarity": 3,
-    "landBiomes": [
-        "hot/desert-dunes",
-        "hot/desert-dunes-red",
-        "savanna/forest",
-        "savanna/savanna",
-        "mesa/dark",
-        "savanna/forest",
-        "savanna/plateau",
-        "savanna/acacia-denmyre",
-        "mesa/plateau",
-        "mesa/valleys",
-        "mesa/plateau-high",
-        "mesa/valleys",
-        "mesa/mesa",
-        "mesa/cliffs",
-        "tropical/rainforest",
-        "tropical/volcanic-plains",
-        "tropical/rainforest-hills",
-        "tropical/wilds",
-        "tropical/plains",
-        "tropical/bamboo-forest",
-        "tropical/rainforest-wicked",
-        "tropical/mountain",
-        "tropical/mountain-extreme",
-        "tropical/mountain-plains",
-        "tropical/plains-hills"
-    ],
-    "shoreBiomes": [
-        "hot/shore/beach",
-        "tropical/island-beach",
-        "tropical/beach",
-        "tropical/beach-bamboo"
-    ],
-    "seaBiomes": [
-        "hot/sea/ocean",
-        "tropical/submerged-volcanic",
-        "tropical/sea/ocean",
-        "tropical/sea/river-soft"
-    ],
-    "landBiomeZoom": 6.25,
-    "shoreHeightMax": 7.7,
-    "shoreHeightMin": 3.2,
-    "shoreHeightZoom": 1.74
-}
\ No newline at end of file
diff --git a/regions/mid-temperature.json b/regions/mid-temperature.json
deleted file mode 100644
index 533de5f7..00000000
--- a/regions/mid-temperature.json
+++ /dev/null
@@ -1,44 +0,0 @@
-{
-    "name": "High Temperature",
-    "color": "#FFFF00",
-    "rarity": 3,
-    "landBiomes": [
-        "temperate/plateau",
-        "temperate/stranged-plains",
-        "temperate/longtree-forest",
-        "temperate/osaka-violet-forest",
-        "temperate/combo-forest",
-        "temperate/plains",
-        "temperate/wilds",
-        "temperate/oak-forest",
-        "temperate/osaka-red-forest",
-        "temperate/birch-forest",
-        "temperate/reaching-forest",
-        "temperate/lush-plains",
-        "swamp/roofed-forest",
-        "swamp/willow-forest",
-        "swamp/sea/lake",
-        "swamp/roofed-wayward",
-        "swamp/swamp-forest",
-        "swamp/cambian-drift",
-        "swamp/marsh",
-        "swamp/handy-willow-forest",
-        "mushroom/forest",
-        "mushroom/crimson-forest",
-        "mushroom/forest-extended",
-        "mushroom/plains",
-        "mushroom/warped-forest"
-    ],
-    "shoreBiomes": [
-        "hot/shore/beach",
-        "tropical/beach"
-    ],
-    "seaBiomes": [
-        "hot/sea/ocean",
-        "tropical/sea/ocean"
-    ],
-    "landBiomeZoom": 6.25,
-    "shoreHeightMax": 7.7,
-    "shoreHeightMin": 3.2,
-    "shoreHeightZoom": 1.74
-}
\ No newline at end of file
diff --git a/regions/terralost.json b/regions/terralost.json
new file mode 100644
index 00000000..3cd91d2c
--- /dev/null
+++ b/regions/terralost.json
@@ -0,0 +1,44 @@
+{
+    "name": "Terralost",
+    "color": "#446600",
+    "rarity": 2,
+    "landBiomes": [
+        "terralost/amethyst-rainforest",
+        "terralost/amethyst-rainforest",
+        "terralost/alpine-grove",
+        "terralost/alpine-highlands"
+    ],
+    "loot": {
+        "mode": "ADD",
+        "multiplier": 1,
+        "tables": ["tropical/dungeon"]
+    },
+    "landBiomeZoom": 3,
+    "shoreBiomes": ["tundra/shore/beach"],
+    "seaBiomes": ["mountain/sea/river"],
+    "entitySpawners": [
+        "tundra/passive",
+        "tundra/hostile",
+        "tundra/cave"
+    ],
+    "shoreHeightMin": 2.2,
+    "shoreHeightMax": 5.2,
+    "carving": {
+        "ravines": [{
+            "rarity": 25,
+            "ravine": "calcite/main"
+        }],
+        "caves": [{
+            "breakSurface": true,
+            "cave": "rocky/main",
+            "rarity": 50,
+            "caveStartHeight": {
+                "max": 400,
+                "min": 15,
+                "style": {"style": "STATIC"}
+            }
+        }]
+    },
+    "shoreHeightZoom": 1.14,
+    "riverThickness": 0.025
+}
diff --git a/regions/tundra.json b/regions/tundra.json
new file mode 100644
index 00000000..b31c5a21
--- /dev/null
+++ b/regions/tundra.json
@@ -0,0 +1,136 @@
+{
+    "name": "Tundra",
+    "color": "#9CB0B9",
+    "rarity": 2,
+    "landBiomes": [
+        "tundra/taiga",
+        "tundra/redwood-forest",
+        "tundra/sequia-redwoods",
+        "tundra/magic-forest",
+        "tundra/autumn",
+        "tundra/forest",
+        "tundra/spruce-denmyre",
+        "tundra/mountains",
+        "tundra/mountains",
+        "tundra/mountains-extended-cliffs",
+        "mountain/hills",
+        "mountain/forest-extended",
+        "tundra/frosted-peaks",
+        "mountain/forest",
+        "mountain/plains",
+        "mountain/cliffs",
+        "mountain/mountain",
+        "tundra/ether"
+    ],
+    "objects": [{
+        "heightmap": {
+            "seed": 1337,
+            "style": {
+                "style": "SIMPLEX",
+                "multiplier": 10
+            },
+            "offsetY": 5
+        },
+        "chance": 0.05,
+        "bottom": true,
+        "density": 1,
+        "place": [
+            "structures/amethyst1",
+            "structures/amethyst2",
+            "structures/amethyst3",
+            "structures/amethyst4",
+            "structures/amethyst5",
+            "structures/amethyst6"
+        ],
+        "edit": [{
+            "find": [{"block": "minecraft:glass"}],
+            "replace": {"palette": [{"block": "minecraft:void_air"}]}
+        }],
+        "enabled": true,
+        "xAxis": {
+            "interval": 90,
+            "max": 360,
+            "min": 0
+        },
+        "yAxis": {
+            "interval": 90,
+            "max": 360,
+            "min": 0
+        },
+        "translate": {
+            "yRandom": 10,
+            "y": 2
+        }
+    }],
+    "shoreBiomes": [
+        "tundra/shore/beach",
+        "tundra/shore/beach-stone"
+    ],
+    "seaBiomes": ["mountain/sea/river"],
+    "entitySpawners": [
+        "tundra/passive",
+        "tundra/hostile",
+        "tundra/cave",
+        "tundra/water"
+    ],
+    "riverBiomes": [
+        "tundra/sea/river",
+        "tundra/sea/river-rocky",
+        "mountain/sea/river",
+        "mountain/sea/river-soft"
+    ],
+    "deposits": [{
+        "minHeight": 20,
+        "maxPerChunk": 8,
+        "maxHeight": 102,
+        "minPerChunk": 2,
+        "minSize": 3,
+        "maxSize": 8,
+        "palette": [{"block": "minecraft:emerald_ore"}],
+        "varience": 8
+    }],
+    "riverRarity": 1,
+    "landBiomeZoom": 4.5,
+    "shoreHeightMin": 2.2,
+    "shoreHeightMax": 5.2,
+    "carving": {
+        "ravines": [
+            {
+                "rarity": 400,
+                "ravine": "calcite/main"
+            },
+            {
+                "rarity": 250,
+                "ravine": "rocky/main"
+            }
+        ],
+        "caves": [
+            {
+                "breakSurface": true,
+                "cave": "calcite/main",
+                "rarity": 20,
+                "caveStartHeight": {
+                    "max": 400,
+                    "min": 15,
+                    "style": {"style": "STATIC"}
+                }
+            },
+            {
+                "breakSurface": true,
+                "cave": "rocky/main",
+                "rarity": 10,
+                "caveStartHeight": {
+                    "max": 400,
+                    "min": 15,
+                    "style": {"style": "STATIC"}
+                }
+            }
+        ]
+    },
+    "shoreHeightZoom": 1.14,
+    "riverThickness": 0.025,
+    "loot": {
+        "mode": "REPLACE",
+        "tables": ["cold/food","cold/treasure","snow/clutter"]
+    }
+}