diff --git a/pytiled_parser/parsers/json/properties.py b/pytiled_parser/parsers/json/properties.py
index 4e9896f..62b2e17 100644
--- a/pytiled_parser/parsers/json/properties.py
+++ b/pytiled_parser/parsers/json/properties.py
@@ -27,7 +27,7 @@ def parse(raw_properties: List[RawProperty]) -> Properties:
     """Parse a list of `RawProperty` objects into `Properties`.
 
     Args:
-        raw_properties: The list of `RawProperty` objects to parse.
+        raw_properties: The list or dict of `RawProperty` objects to parse. The dict type is supported for parsing legacy Tiled dungeon files.
 
     Returns:
         Properties: The parsed `Property` objects.
@@ -36,13 +36,17 @@ def parse(raw_properties: List[RawProperty]) -> Properties:
     final: Properties = {}
     value: Property
 
-    for raw_property in raw_properties:
-        if raw_property["type"] == "file":
-            value = Path(cast(str, raw_property["value"]))
-        elif raw_property["type"] == "color":
-            value = parse_color(cast(str, raw_property["value"]))
-        else:
-            value = raw_property["value"]
-        final[raw_property["name"]] = value
+    if isinstance(raw_properties, dict):
+        for name, value in raw_properties.items():
+            final[name] = value
+    else:
+        for raw_property in raw_properties:
+            if raw_property["type"] == "file":
+                value = Path(cast(str, raw_property["value"]))
+            elif raw_property["type"] == "color":
+                value = parse_color(cast(str, raw_property["value"]))
+            else:
+                value = raw_property["value"]
+            final[raw_property["name"]] = value
 
     return final
diff --git a/pytiled_parser/parsers/json/tiled_map.py b/pytiled_parser/parsers/json/tiled_map.py
index b01050f..a5113f5 100644
--- a/pytiled_parser/parsers/json/tiled_map.py
+++ b/pytiled_parser/parsers/json/tiled_map.py
@@ -112,14 +112,14 @@ def parse(file: Path) -> TiledMap:
     # `map` is a built-in function
     map_ = TiledMap(
         map_file=file,
-        infinite=raw_tiled_map["infinite"],
+        infinite=raw_tiled_map.get("infinite", False),
         layers=[parse_layer(layer_, parent_dir) for layer_ in raw_tiled_map["layers"]],
         map_size=Size(raw_tiled_map["width"], raw_tiled_map["height"]),
-        next_layer_id=raw_tiled_map["nextlayerid"],
+        next_layer_id=raw_tiled_map.get("nextlayerid"),
         next_object_id=raw_tiled_map["nextobjectid"],
         orientation=raw_tiled_map["orientation"],
         render_order=raw_tiled_map["renderorder"],
-        tiled_version=raw_tiled_map["tiledversion"],
+        tiled_version=raw_tiled_map.get("tiledversion", ""),
         tile_size=Size(raw_tiled_map["tilewidth"], raw_tiled_map["tileheight"]),
         tilesets=tilesets,
         version=version,
diff --git a/pytiled_parser/parsers/json/tileset.py b/pytiled_parser/parsers/json/tileset.py
index fc74ee6..cbbc51d 100644
--- a/pytiled_parser/parsers/json/tileset.py
+++ b/pytiled_parser/parsers/json/tileset.py
@@ -249,7 +249,7 @@ def parse(
         tile_count=raw_tileset["tilecount"],
         tile_width=raw_tileset["tilewidth"],
         tile_height=raw_tileset["tileheight"],
-        columns=raw_tileset["columns"],
+        columns=raw_tileset.get("columns", 1),
         spacing=raw_tileset["spacing"],
         margin=raw_tileset["margin"],
         firstgid=firstgid,
@@ -304,8 +304,18 @@ def parse(
 
     if raw_tileset.get("tiles") is not None:
         tiles = {}
-        for raw_tile in raw_tileset["tiles"]:
-            tiles[raw_tile["id"]] = _parse_tile(raw_tile, external_path=external_path)
+        if isinstance(raw_tileset["tiles"], dict):
+            for raw_tile_id, raw_tile in raw_tileset["tiles"].items():
+                assert raw_tile.get("id") is None
+                raw_tile["id"] = int(raw_tile_id)
+                tiles[raw_tile["id"]] = _parse_tile(
+                    raw_tile, external_path=external_path
+                )
+        else:
+            for raw_tile in raw_tileset["tiles"]:
+                tiles[raw_tile["id"]] = _parse_tile(
+                    raw_tile, external_path=external_path
+                )
         tileset.tiles = tiles
 
     if raw_tileset.get("wangsets") is not None: