diff --git a/dungeonbattle/entities/__init__.py b/dungeonbattle/entities/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/dungeonbattle/entities/items.py b/dungeonbattle/entities/items.py
new file mode 100644
index 0000000..23a1c6e
--- /dev/null
+++ b/dungeonbattle/entities/items.py
@@ -0,0 +1,33 @@
+from ..interfaces import Entity, FightingEntity
+
+class Item(Entity):
+    held:bool
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(self, *args, **kwargs)
+        self.held = False
+    
+    def drop(self, x:int, y:int):
+        self.held = False
+        self.move(x, y)
+    
+    def hold(self):
+        self.held = True
+
+class Bomb(Item):
+    damage:int = 5
+    exploding:bool
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(self, *args, **kwargs)
+        self.exploding = False
+
+    def drop(self, x:int, y:int):
+        super.drop(self, x, y)
+        self.exploding = True
+    
+    def act(self, map):
+        if self.exploding:
+            for e in map.entities:
+                if abs (e.x - self.x) + abs (e.y - self.y) <= 1 and isinstance(e,FightingEntity):
+                    e.take_damage(self, self.damage)
diff --git a/dungeonbattle/entities/monsters.py b/dungeonbattle/entities/monsters.py
new file mode 100644
index 0000000..9aa6c06
--- /dev/null
+++ b/dungeonbattle/entities/monsters.py
@@ -0,0 +1,9 @@
+from ..interfaces import FightingEntity
+
+class Monster(FightingEntity):
+    def act(self, map):
+        pass
+
+class Squirrel(Monster):
+    maxhealth = 10
+    strength = 3
diff --git a/dungeonbattle/entities/player.py b/dungeonbattle/entities/player.py
new file mode 100644
index 0000000..b687366
--- /dev/null
+++ b/dungeonbattle/entities/player.py
@@ -0,0 +1,5 @@
+from ..interfaces import FightingEntity
+
+class Player(FightingEntity):
+    maxhealth = 20
+    strength = 5
diff --git a/dungeonbattle/interfaces.py b/dungeonbattle/interfaces.py
index 5823352..f1474e0 100644
--- a/dungeonbattle/interfaces.py
+++ b/dungeonbattle/interfaces.py
@@ -11,7 +11,7 @@ class Map:
     height: int
     tiles: list
 
-    def __init__(self, width: int, height: int, tiles: list, entities: list):
+    def __init__(self, width: int, height: int, tiles: list, entities = []):
         self.width = width
         self.height = height
         self.tiles = tiles
@@ -37,8 +37,10 @@ class Map:
         width = len(lines[0])
         tiles = [[Tile(c)
                   for x, c in enumerate(line)] for y, line in enumerate(lines)]
+
         return Map(width, height, tiles, [])
 
+
     def draw_string(self) -> str:
         """
         Draw the current map as a string object that can be rendered
@@ -64,15 +66,31 @@ class Tile(Enum):
 
 
 class Entity:
-    y: int
     x: int
-    img: str
-
-    def __init__(self, y: int, x: int, img: str):
-        self.y = y
-        self.x = x
-        self.img = img
+    y: int
 
     def move(self, x: int, y: int) -> None:
         self.x = x
         self.y = y
+    
+    def act(self, m:Map):
+        pass
+
+class FightingEntity(Entity):
+    maxhealth: int
+    health: int
+    strength: int
+
+    def __init__(self):
+        self.health = self.maxhealth
+
+    def hit(self, opponent) -> None:
+        opponent.take_damage(self, self.strength)
+    
+    def take_damage(self, attacker, amount:int) -> None:
+        self.health -= amount
+        if self.health <= 0:
+            self.die()
+    
+    def die(self) -> None:
+       pass