diff --git a/overworld/objects/structure/ogMurkyCavern/corner-1.iob b/overworld/objects/structure/ogMurkyCavern/corner-1.iob
new file mode 100644
index 00000000..9c510c68
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/corner-1.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/corner-2.iob b/overworld/objects/structure/ogMurkyCavern/corner-2.iob
new file mode 100644
index 00000000..a1e2afe3
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/corner-2.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/corner-3.iob b/overworld/objects/structure/ogMurkyCavern/corner-3.iob
new file mode 100644
index 00000000..1ad11304
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/corner-3.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/corner-4.iob b/overworld/objects/structure/ogMurkyCavern/corner-4.iob
new file mode 100644
index 00000000..af77f683
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/corner-4.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-1.iob b/overworld/objects/structure/ogMurkyCavern/cross-1.iob
new file mode 100644
index 00000000..a56fc97f
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-1.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-2.iob b/overworld/objects/structure/ogMurkyCavern/cross-2.iob
new file mode 100644
index 00000000..c8016d7a
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-2.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-3.iob b/overworld/objects/structure/ogMurkyCavern/cross-3.iob
new file mode 100644
index 00000000..d02ef5aa
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-3.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-4.iob b/overworld/objects/structure/ogMurkyCavern/cross-4.iob
new file mode 100644
index 00000000..3ff51379
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-4.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-5.iob b/overworld/objects/structure/ogMurkyCavern/cross-5.iob
new file mode 100644
index 00000000..2572a799
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-5.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-6.iob b/overworld/objects/structure/ogMurkyCavern/cross-6.iob
new file mode 100644
index 00000000..ed91564c
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-6.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-7.iob b/overworld/objects/structure/ogMurkyCavern/cross-7.iob
new file mode 100644
index 00000000..414a09ff
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-7.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/cross-8.iob b/overworld/objects/structure/ogMurkyCavern/cross-8.iob
new file mode 100644
index 00000000..aa651d56
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/cross-8.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/hall-1.iob b/overworld/objects/structure/ogMurkyCavern/hall-1.iob
new file mode 100644
index 00000000..97740dd9
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/hall-1.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/hall-2.iob b/overworld/objects/structure/ogMurkyCavern/hall-2.iob
new file mode 100644
index 00000000..382ee6ae
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/hall-2.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/hall-3.iob b/overworld/objects/structure/ogMurkyCavern/hall-3.iob
new file mode 100644
index 00000000..cf0d78a6
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/hall-3.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/hall-4.iob b/overworld/objects/structure/ogMurkyCavern/hall-4.iob
new file mode 100644
index 00000000..d53093bd
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/hall-4.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/room-1.iob b/overworld/objects/structure/ogMurkyCavern/room-1.iob
new file mode 100644
index 00000000..b7832d36
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/room-1.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/room-2.iob b/overworld/objects/structure/ogMurkyCavern/room-2.iob
new file mode 100644
index 00000000..1d524986
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/room-2.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/room-3.iob b/overworld/objects/structure/ogMurkyCavern/room-3.iob
new file mode 100644
index 00000000..6c021d8e
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/room-3.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/room-4.iob b/overworld/objects/structure/ogMurkyCavern/room-4.iob
new file mode 100644
index 00000000..bfa02560
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/room-4.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/t-connect-1.iob b/overworld/objects/structure/ogMurkyCavern/t-connect-1.iob
new file mode 100644
index 00000000..3e3483b9
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/t-connect-1.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/t-connect-2.iob b/overworld/objects/structure/ogMurkyCavern/t-connect-2.iob
new file mode 100644
index 00000000..1fdbd9ef
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/t-connect-2.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/t-connect-3.iob b/overworld/objects/structure/ogMurkyCavern/t-connect-3.iob
new file mode 100644
index 00000000..9c575d85
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/t-connect-3.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/t-connect-4.iob b/overworld/objects/structure/ogMurkyCavern/t-connect-4.iob
new file mode 100644
index 00000000..9b84c7ad
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/t-connect-4.iob differ
diff --git a/overworld/objects/structure/ogMurkyCavern/walled-room-1.iob b/overworld/objects/structure/ogMurkyCavern/walled-room-1.iob
new file mode 100644
index 00000000..72afe7aa
Binary files /dev/null and b/overworld/objects/structure/ogMurkyCavern/walled-room-1.iob differ
diff --git a/overworld/regions/swamp.json b/overworld/regions/swamp.json
index 37de8fa5..74b3d8ef 100644
--- a/overworld/regions/swamp.json
+++ b/overworld/regions/swamp.json
@@ -43,11 +43,11 @@
     ],
     "structures": [
         {
-            "tileset": "murky-stronghold",
-            "zoom": 0.5,
-            "ratio": 0.5,
+            "tileset": "ogMurkyCavern",
+            "zoom": 0.25,
+            "ratio": 0.05,
             "height": 25,
-            "rarity": 10,
+            "rarity": 15,
             "shuffle": 5
         }
     ]
diff --git a/overworld/structures/murky-stronghold.json b/overworld/structures/murky-stronghold.json
index 0e14a4c7..6737547d 100644
--- a/overworld/structures/murky-stronghold.json
+++ b/overworld/structures/murky-stronghold.json
@@ -206,6 +206,7 @@
                 "structure/murky-stronghold/c-ns-4"
             ]
         },
+
         {
             "ceiling": "REQUIRED",
             "floor": "REQUIRED",
diff --git a/overworld/structures/ogMurkyCavern.json b/overworld/structures/ogMurkyCavern.json
new file mode 100644
index 00000000..f0b9cb1a
--- /dev/null
+++ b/overworld/structures/ogMurkyCavern.json
@@ -0,0 +1,152 @@
+{
+    "gridHeight": 6,
+    "wallStyle": {
+        "multiplier": 1,
+        "style": "STATIC",
+        "zoom": 1,
+        "exponent": 1
+    },
+    "tiles": [
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "NEVER",
+            "placeMode": "PAINT",
+            "south": "NEVER",
+            "rareObjects": [],
+            "north": "NEVER",
+            "objects": [
+                "structure/OgMurkyCavern/cross-1",
+                "structure/OgMurkyCavern/cross-2",
+                "structure/OgMurkyCavern/cross-3",
+                "structure/OgMurkyCavern/cross-4",
+                "structure/OgMurkyCavern/cross-5",
+                "structure/OgMurkyCavern/cross-6",
+                "structure/OgMurkyCavern/cross-7",
+                "structure/OgMurkyCavern/cross-8"
+            ],
+            "west": "NEVER",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        },
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "NEVER",
+            "placeMode": "PAINT",
+            "south": "NEVER",
+            "rareObjects": [],
+            "north": "REQUIRED",
+            "objects": [
+                "structure/OgMurkyCavern/t-connect-1",
+                "structure/OgMurkyCavern/t-connect-2",
+                "structure/OgMurkyCavern/t-connect-3",
+                "structure/OgMurkyCavern/t-connect-4"
+            ],
+            "west": "NEVER",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        },
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "NEVER",
+            "placeMode": "PAINT",
+            "south": "REQUIRED",
+            "rareObjects": [],
+            "north": "REQUIRED",
+            "objects": [
+                "structure/OgMurkyCavern/hall-1",
+                "structure/OgMurkyCavern/hall-2",
+                "structure/OgMurkyCavern/hall-3",
+                "structure/OgMurkyCavern/hall-4"
+            ],
+            "west": "NEVER",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        },
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "REQUIRED",
+            "placeMode": "PAINT",
+            "south": "NEVER",
+            "rareObjects": [],
+            "north": "REQUIRED",
+            "objects": [
+                "structure/OgMurkyCavern/corner-1",
+                "structure/OgMurkyCavern/corner-2",
+                "structure/OgMurkyCavern/corner-3",
+                "structure/OgMurkyCavern/corner-4"
+            ],
+            "west": "NEVER",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        },
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "REQUIRED",
+            "placeMode": "PAINT",
+            "south": "NEVER",
+            "rareObjects": [],
+            "north": "REQUIRED",
+            "objects": [
+                "structure/OgMurkyCavern/room-1",
+                "structure/OgMurkyCavern/room-2",
+                "structure/OgMurkyCavern/room-3",
+                "structure/OgMurkyCavern/room-4"
+            ],
+            "west": "REQUIRED",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        },
+        {
+            "ceiling": "AGNOSTIC",
+            "east": "REQUIRED",
+            "placeMode": "PAINT",
+            "south": "REQUIRED",
+            "rareObjects": [],
+            "north": "REQUIRED",
+            "objects": ["structure/OgMurkyCavern/walled-room-1"],
+            "west": "REQUIRED",
+            "loot": {
+                "mode": "ADD",
+                "tables": [],
+                "multiplier": 1
+            },
+            "floor": "REQUIRED"
+        }
+    ],
+    "gridSize": 5,
+    "wallChance": 0.35,
+    "maxLayers": 1,
+    "name": "OgMurkyCavern",
+    "underwater": false,
+    "loot": {
+        "mode": "ADD",
+        "tables": [],
+        "multiplier": 1
+    },
+    "clamp": {
+        "minimumHeight": 0,
+        "maximumHeight": 255
+    },
+    "bore": true,
+    "mergeEdges": false
+}