diff --git a/Mystery.py b/Mystery.py
index 73644500..d3d05fa0 100644
--- a/Mystery.py
+++ b/Mystery.py
@@ -99,7 +99,8 @@ def get_weights(path):
         raise Exception(f'Failed to read weights file: {e}')
 
 def roll_settings(weights):
-    def get_choice(option, root=weights):
+    def get_choice(option, root=None):
+        root = weights if root is None else root
         if option not in root:
             return None
         if type(root[option]) is not dict:
@@ -114,6 +115,16 @@ def roll_settings(weights):
             return default
         return choice
 
+    while True:
+        subweights = weights.get('subweights', {})
+        if len(subweights) == 0:
+            break
+        chances = ({k: int(v['chance']) for (k, v) in subweights.items()})
+        subweight_name = random.choices(list(chances.keys()), weights=list(chances.values()))[0]
+        subweights = weights.get('subweights', {}).get(subweight_name, {}).get('weights', {})
+        subweights['subweights'] = subweights.get('subweights', {})
+        weights = {**weights, **subweights}
+
     ret = argparse.Namespace()
 
     glitches_required = get_choice('glitches_required')
diff --git a/mystery_example_subweights.yml b/mystery_example_subweights.yml
new file mode 100644
index 00000000..1ec43cac
--- /dev/null
+++ b/mystery_example_subweights.yml
@@ -0,0 +1,57 @@
+  description: Example for subweights
+  glitches_required: none
+  world_state: open
+  goals: ganon
+  weapons: randomized
+  entrance_shuffle: none
+  intensity: 3
+  subweights:
+    vanilla:
+      chance: 25
+      weights:
+        door_shuffle: vanilla
+        keydropshuffle:
+          on: 40
+          off: 60
+    basic:
+      chance: 25
+      weights:
+        door_shuffle: basic
+        keydropshuffle:
+          on: 70
+          off: 30
+    crossed:
+      chance: 25
+      weights:
+        door_shuffle: crossed
+        keydropshuffle:
+          on: 90
+          off: 10
+    chaos:
+      chance: 25
+      weights:
+        door_shuffle: crossed
+        entrance_shuffle:
+          none: 30
+          crossed: 70
+        keydropshuffle:
+          on: 90
+          off: 10
+        shopsanity:
+          on: 50
+          off: 50
+        bombbag:
+          on: 25
+          off: 75
+        subweights:
+          normal:
+            chance: 40
+            weights: {}
+          swordless:
+            chance: 20
+            weights:
+              weapons: swordless
+          keysanity:
+            chance: 40
+            weights:
+              dungeon_items: full