diff --git a/squirrelbattle/mapgeneration/broguelike.py b/squirrelbattle/mapgeneration/broguelike.py
index f746f37..973485b 100644
--- a/squirrelbattle/mapgeneration/broguelike.py
+++ b/squirrelbattle/mapgeneration/broguelike.py
@@ -13,7 +13,7 @@ DEFAULT_PARAMS = {
     "max_rooms": 20,
     "max_room_tries": 15,
     "cross_room": 1,
-    "corridor_chance": .6,
+    "corridor_chance": .2,
     "min_v_corr": 2,
     "max_v_corr": 6,
     "min_h_corr": 4,
@@ -24,6 +24,10 @@ DEFAULT_PARAMS = {
     "loop_max": 5,
     "loop_threshold": 15,
     "spawn_per_region": [1, 2],
+    "room_chances": {
+        "circular": 5,
+        "chunks": 1,
+    },
 }
 
 
@@ -254,6 +258,47 @@ class Generator:
 
         return y + length * dy, x + length * dx, dy, dx
 
+    def create_chunk_room(self, spawnable: bool = True) \
+            -> Tuple[List[List[Tile]], int, int, int, int]:
+        """
+        Create and return as a tile grid a room that is composed of multiple
+        overlapping circles of the same radius
+        Also return door info so we know how to place the room in the level
+        """
+        height, width = 15, 15
+        nb_chunks, r = 6, 3
+
+        h_sup, w_sup, h_off, w_off = self.corr_meta_info()
+        room = [[Tile.EMPTY] * (width + w_sup)
+                for _dummy in range(height + h_sup)]
+
+        def draw_chunk(room: List[List[Tile]], y: int, x: int) -> None:
+            for i in range(y - r, y + r + 1):
+                d = (y - i)**2
+                for j in range(x - r, x + r + 1):
+                    if d + (x - j) ** 2 < r ** 2:
+                        room[i][j] = Tile.FLOOR
+
+        draw_chunk(room, h_off + height // 2 + 1, w_off + width // 2 + 1)
+
+        min_w, max_w = w_off + r + 1, width + w_off - r - 1
+        min_h, max_h = h_off + r + 1, height + h_off - r - 1
+        for i in range(nb_chunks):
+            y, x = randint(min_h, max_h), randint(min_w, max_w)
+            while room[y][x] != Tile.FLOOR:
+                y, x = randint(min_h, max_h), randint(min_w, max_w)
+            draw_chunk(room, y, x)
+
+        # log all placed tiles as spawn positions
+        if spawnable:
+            self.register_spawn_area(room)
+
+        # attach exit
+        door_y, door_x, dy, dx = self.attach_door(room, h_sup, w_sup,
+                                                  h_off, w_off)
+
+        return room, door_y, door_x, dy, dx
+
     def create_circular_room(self, spawnable: bool = True) \
             -> Tuple[List[List[Tile]], int, int, int, int]:
         """
@@ -304,7 +349,19 @@ class Generator:
         door info. Set spawnable to False is the room should be marked as a
         potential spawning region on the map
         """
-        return self.create_circular_room()
+        coef_dict = self.params["room_chances"]
+        sum_coefs = sum(coef_dict[key] for key in coef_dict)
+        target = randint(1, sum_coefs)
+        for key in coef_dict:
+            if target > coef_dict[key]:
+                target -= coef_dict[key]
+            else:
+                break
+
+        if key == "circular":
+            return self.create_circular_room(spawnable=spawnable)
+        elif key == "chunks":
+            return self.create_chunk_room(spawnable=spawnable)
 
     def register_spawn_area(self, area: List[List[Tile]]) -> None:
         """
diff --git a/squirrelbattle/tests/game_test.py b/squirrelbattle/tests/game_test.py
index 4f80977..e5573ec 100644
--- a/squirrelbattle/tests/game_test.py
+++ b/squirrelbattle/tests/game_test.py
@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 import curses
-import os
 import unittest
 
 from ..bootstrap import Bootstrap
@@ -101,7 +100,6 @@ class TestGame(unittest.TestCase):
         Yeah, that's only for coverage.
         """
         self.assertRaises(Exception, Bootstrap.run_game)
-        self.assertEqual(os.getenv("TERM", "unknown"), "unknown")
 
     def test_key_translation(self) -> None:
         """