diff --git a/game/components.py b/game/components.py
index a75b35b..5eae5c0 100644
--- a/game/components.py
+++ b/game/components.py
@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from typing import Final, Self
+from typing import Final, Self, Callable
 
 import attrs
 import math
@@ -65,6 +65,8 @@ class Graphic:
     ch: int = ord("!")
     fg: tuple[int, int, int] = (255, 255, 255)
 
+Action: Final = ("Action", Callable[[tcod.ecs.Entity], None])
+"""Possible action."""
 
 Gold: Final = ("Gold", int)
 """Amount of gold."""
diff --git a/game/screens/game_screens.py b/game/screens/game_screens.py
index 5144aea..2633fff 100644
--- a/game/screens/game_screens.py
+++ b/game/screens/game_screens.py
@@ -10,10 +10,10 @@ from tcod.event import KeySym
 from tcod.map import Map
 
 import g
-from game.components import Gold, Graphic, Position
+from game.components import Action, Gold, Graphic, Position
 from game.constants import DIRECTION_KEYS, ACTION_KEYS
 from game.screens import Push, Screen, ScreenResult
-from game.tags import IsItem, IsPlayer, IsDoor, IsActor
+from game.tags import IsItem, IsPlayer, IsActor
 from game.constants import WALL_CHAR
 from game.screens import menu_screens
 from game.world_tools import world_pos_to_map_pos, map_pos_to_world_pos
@@ -28,10 +28,10 @@ class MainScreen(Screen):
         map: Map = g.world[None].components[Map]
         match event:
             case tcod.event.KeyDown(sym=sym) if sym in ACTION_KEYS:
-                for door in g.world.Q.all_of(tags=[IsDoor]):
+                for entity in g.world.Q.all_of(components=[Action, Position]):
                     player_pos = player.components[Position]
-                    if (player_pos - door.components[Position]).length() < 2:
-                        ACTION_KEYS[sym](door)
+                    if (player_pos - entity.components[Position]).length() < 2:
+                        entity.components[Action](entity)
                         cam_map = world_pos_to_map_pos(player_pos)
                         map.compute_fov(cam_map.x, cam_map.y, 100)
 
diff --git a/game/tags.py b/game/tags.py
index bfbbe7c..00f8a0d 100644
--- a/game/tags.py
+++ b/game/tags.py
@@ -12,6 +12,3 @@ IsActor: Final = "IsActor"
 
 IsItem: Final = "IsItem"
 """Entity is an item."""
-
-IsDoor: Final = "IsDoor"
-"""Entiy is a door."""
diff --git a/game/world_tools.py b/game/world_tools.py
index 7e0e844..10b1a68 100644
--- a/game/world_tools.py
+++ b/game/world_tools.py
@@ -9,8 +9,8 @@ from tcod.map import Map
 
 import g
 
-from game.components import Gold, Graphic, Position
-from game.tags import IsActor, IsItem, IsPlayer, IsDoor
+from game.components import Action, Gold, Graphic, Position
+from game.tags import IsActor, IsItem, IsPlayer
 
 world_center: Final = Position(50, 50)
 
@@ -30,9 +30,9 @@ def add_door(world, pos):
     world.new_entity(
         components={
             Position: pos,
-            Graphic: Graphic(ord('\\'))
-        },
-        tags=[IsDoor]
+            Graphic: Graphic(ord('\\')),
+            Action: unlock_door
+        }
     )
     add_wall(world, pos)