diff --git a/biomes/tropical-rainforest-hills.json b/biomes/tropical-rainforest-hills.json
index ff0e1ee6..5b54594c 100644
--- a/biomes/tropical-rainforest-hills.json
+++ b/biomes/tropical-rainforest-hills.json
@@ -184,7 +184,7 @@
             }
         },
         {
-            "chance": 0.01,
+            "chance": 0.035,
             "density": 3,
             "rotation": {
                 "yAxis": {
diff --git a/regions/frozen.json b/regions/frozen.json
index 0dfd5126..c8c5c12f 100644
--- a/regions/frozen.json
+++ b/regions/frozen.json
@@ -2,12 +2,13 @@
     "riverBiomes": [
         "frozen-river"
     ],
-    "structures": [
+"structures": [
         {
             "tileset": "soul-temple",
-            "zoom": 2,
-            "rarity": 300,
-            "height": 35
+            "height": 26,
+            "rarity": 3,
+            "ratio": 0.9,
+            "zoom": 1
         }
     ],
     "spotBiomes": [
diff --git a/regions/hot.json b/regions/hot.json
index 83d5f334..f68dce19 100644
--- a/regions/hot.json
+++ b/regions/hot.json
@@ -35,6 +35,15 @@
             "replaceVanillaDrops": true
         }
     ],
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "landBiomes": [
         "hot-mesa-yellow",
         "hot-desert",
diff --git a/regions/mosaic.json b/regions/mosaic.json
index 744f312a..1345cbe5 100644
--- a/regions/mosaic.json
+++ b/regions/mosaic.json
@@ -1,4 +1,13 @@
 {
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "landBiomes": [
         "mosaic-lith-black",
         "mosaic-lith-green",
diff --git a/regions/mushroom.json b/regions/mushroom.json
index a7a9894e..b3c3d750 100644
--- a/regions/mushroom.json
+++ b/regions/mushroom.json
@@ -27,7 +27,21 @@
             ]
         }
     ],
-
+"structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        },
+        {
+            "tileset": "mush-huts",
+            "rarity": 9,
+            "ratio": 0.9,
+            "zoom": 0.55
+        }
+    ],
     "spotBiomes": [
         {
             "biome": "mushroom-crimson-forest",
diff --git a/regions/swamp.json b/regions/swamp.json
index 27b9aa71..f80c220f 100644
--- a/regions/swamp.json
+++ b/regions/swamp.json
@@ -23,6 +23,22 @@
             ]
         }
     ],
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        },
+        {
+            "tileset": "ruins",
+            "rarity": 20,
+            "shuffle": 22,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "landBiomes": [
         "swamp-roofed-forest",
         "swamp-mountain-forest",
diff --git a/regions/temperate.json b/regions/temperate.json
index f9b3ceca..9229215d 100644
--- a/regions/temperate.json
+++ b/regions/temperate.json
@@ -2,6 +2,22 @@
     "riverBiomes": [
         "temperate-river"
     ],
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        },
+        {
+            "tileset": "ruins",
+            "rarity": 20,
+            "shuffle": 22,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "spotBiomes": [
         {
             "as": "LAND",
diff --git a/regions/tropical.json b/regions/tropical.json
index 407e2935..ed35fa1c 100644
--- a/regions/tropical.json
+++ b/regions/tropical.json
@@ -26,6 +26,22 @@
     "seaBiomes": [
         "tropical-ocean"
     ],
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 6,
+            "ratio": 0.9,
+            "zoom": 0.5
+        },
+        {
+            "tileset": "ruins",
+            "rarity": 20,
+            "shuffle": 22,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "deposits": [
         {
             "minHeight": 25,
diff --git a/regions/tundra.json b/regions/tundra.json
index e43dd621..8d432aad 100644
--- a/regions/tundra.json
+++ b/regions/tundra.json
@@ -36,6 +36,23 @@
         "tundra-cavern",
         "tundra-spiked-cavern"
     ],
+    "structures": [
+        {
+            "tileset": "murky-stronghold",
+            "height": 26,
+            "rarity": 4,
+            "shuffle": 22,
+            "ratio": 0.9,
+            "zoom": 0.5
+        },
+        {
+            "tileset": "village-stone",
+            "rarity": 18,
+            "shuffle": 22,
+            "ratio": 0.9,
+            "zoom": 0.5
+        }
+    ],
     "landBiomeZoom": 1.25,
     "riverStyle": {
         "style": "VASCULAR",