diff --git a/BaseClasses.py b/BaseClasses.py
index f8f31a0cc99b..da3ce498d4f1 100644
--- a/BaseClasses.py
+++ b/BaseClasses.py
@@ -1050,7 +1050,7 @@ def __init__(self, player: int, name: str = '', address: Optional[int] = None, p
         self.parent_region = parent
 
     def can_fill(self, state: CollectionState, item: Item, check_access=True) -> bool:
-        return ((self.always_allow(state, item) and item.name not in state.multiworld.non_local_items[item.player])
+        return ((self.always_allow(state, item) and item.name not in state.multiworld.worlds[item.player].options.non_local_items)
                 or ((self.progress_type != LocationProgressType.EXCLUDED or not (item.advancement or item.useful))
                     and self.item_rule(item)
                     and (not check_access or self.can_reach(state))))
@@ -1246,7 +1246,7 @@ def create_playthrough(self, create_paths: bool = True) -> None:
                 logging.debug('The following items could not be reached: %s', ['%s (Player %d) at %s (Player %d)' % (
                     location.item.name, location.item.player, location.name, location.player) for location in
                                                                                sphere_candidates])
-                if any([multiworld.accessibility[location.item.player] != 'minimal' for location in sphere_candidates]):
+                if any([multiworld.worlds[location.item.player].options.accessibility != 'minimal' for location in sphere_candidates]):
                     raise RuntimeError(f'Not all progression items reachable ({sphere_candidates}). '
                                        f'Something went terribly wrong here.')
                 else:
diff --git a/worlds/generic/Rules.py b/worlds/generic/Rules.py
index f0eef2248058..e930c4b8d6e9 100644
--- a/worlds/generic/Rules.py
+++ b/worlds/generic/Rules.py
@@ -14,16 +14,16 @@
     ItemRule = typing.Callable[[object], bool]
 
 
-def locality_needed(world: MultiWorld) -> bool:
-    for player in world.player_ids:
-        if world.local_items[player].value:
+def locality_needed(multiworld: MultiWorld) -> bool:
+    for player in multiworld.player_ids:
+        if multiworld.worlds[player].options.local_items.value:
             return True
-        if world.non_local_items[player].value:
+        if multiworld.worlds[player].options.non_local_items.value:
             return True
 
     # Group
-    for group_id, group in world.groups.items():
-        if set(world.player_ids) == set(group["players"]):
+    for group_id, group in multiworld.groups.items():
+        if set(multiworld.player_ids) == set(group["players"]):
             continue
         if group["local_items"]:
             return True
@@ -31,8 +31,8 @@ def locality_needed(world: MultiWorld) -> bool:
             return True
 
 
-def locality_rules(world: MultiWorld):
-    if locality_needed(world):
+def locality_rules(multiworld: MultiWorld):
+    if locality_needed(multiworld):
 
         forbid_data: typing.Dict[int, typing.Dict[int, typing.Set[str]]] = \
             collections.defaultdict(lambda: collections.defaultdict(set))
@@ -40,32 +40,32 @@ def locality_rules(world: MultiWorld):
         def forbid(sender: int, receiver: int, items: typing.Set[str]):
             forbid_data[sender][receiver].update(items)
 
-        for receiving_player in world.player_ids:
-            local_items: typing.Set[str] = world.worlds[receiving_player].options.local_items.value
+        for receiving_player in multiworld.player_ids:
+            local_items: typing.Set[str] = multiworld.worlds[receiving_player].options.local_items.value
             if local_items:
-                for sending_player in world.player_ids:
+                for sending_player in multiworld.player_ids:
                     if receiving_player != sending_player:
                         forbid(sending_player, receiving_player, local_items)
-            non_local_items: typing.Set[str] = world.worlds[receiving_player].options.non_local_items.value
+            non_local_items: typing.Set[str] = multiworld.worlds[receiving_player].options.non_local_items.value
             if non_local_items:
                 forbid(receiving_player, receiving_player, non_local_items)
 
         # Group
-        for receiving_group_id, receiving_group in world.groups.items():
-            if set(world.player_ids) == set(receiving_group["players"]):
+        for receiving_group_id, receiving_group in multiworld.groups.items():
+            if set(multiworld.player_ids) == set(receiving_group["players"]):
                 continue
             if receiving_group["local_items"]:
-                for sending_player in world.player_ids:
+                for sending_player in multiworld.player_ids:
                     if sending_player not in receiving_group["players"]:
                         forbid(sending_player, receiving_group_id, receiving_group["local_items"])
             if receiving_group["non_local_items"]:
-                for sending_player in world.player_ids:
+                for sending_player in multiworld.player_ids:
                     if sending_player in receiving_group["players"]:
                         forbid(sending_player, receiving_group_id, receiving_group["non_local_items"])
 
         # create fewer lambda's to save memory and cache misses
         func_cache = {}
-        for location in world.get_locations():
+        for location in multiworld.get_locations():
             if (location.player, location.item_rule) in func_cache:
                 location.item_rule = func_cache[location.player, location.item_rule]
             # empty rule that just returns True, overwrite