diff --git a/entity.py b/entity.py
index e69de29..ef22087 100644
--- a/entity.py
+++ b/entity.py
@@ -0,0 +1,13 @@
+from .serializable import Serializable
+
+class Entity(Serializable):
+    def __init__(self, name, strength, dexterity, intelligence, wisdom, charisma, hp, armor, speed):
+        self.name =name
+        self.strength = strength
+        self.dexterity = dexterity
+        self.intelligence = intelligence
+        self.wisdom = wisdom
+        self.charisma = charisma
+        self.hp =hp
+        self.armor = armor
+        self.speed = speed
\ No newline at end of file
diff --git a/game.py b/game.py
index e69de29..bc971ff 100644
--- a/game.py
+++ b/game.py
@@ -0,0 +1,9 @@
+from .serializable import Serializable
+from .dice import Dice
+
+class Game(Serializable):
+    def __init__(self, seed:int=42):
+        self.dice = Dice(seed)
+    
+    def roll(self, num_faces:int=10):
+        return self.dice.roll(num_faces=num_faces)
\ No newline at end of file
diff --git a/inventory.py b/inventory.py
new file mode 100644
index 0000000..0ae1030
--- /dev/null
+++ b/inventory.py
@@ -0,0 +1,5 @@
+from .serializable import Serializable
+
+class Inventory(Serializable):
+    def __init__(self):
+        super().__init__()
\ No newline at end of file
diff --git a/item.py b/item.py
new file mode 100644
index 0000000..aefbd56
--- /dev/null
+++ b/item.py
@@ -0,0 +1,5 @@
+from .serializable import Serializable
+
+class Item(Serializable):
+    def __init__(self):
+        super().__init__()
\ No newline at end of file
diff --git a/npc.py b/npc.py
index e69de29..6ab6f9a 100644
--- a/npc.py
+++ b/npc.py
@@ -0,0 +1,6 @@
+from .entity import Entity
+
+class NPC(Entity):
+    def __init__(self, name, strength, dexterity, intelligence, wisdom, charisma, hp, armor, speed, item=None):
+        super().__init__(name, strength, dexterity, intelligence, wisdom, charisma, hp, armor, speed)
+        self.item = item
\ No newline at end of file
diff --git a/player.py b/player.py
index e69de29..6a05bcd 100644
--- a/player.py
+++ b/player.py
@@ -0,0 +1,6 @@
+from .entity import Entity
+
+class Player(Entity):
+    def __init__(self, name, strength, dexterity, intelligence, wisdom, charisma, hp, armor, speed, item=None):
+        super().__init__(name, strength, dexterity, intelligence, wisdom, charisma, hp, armor, speed)
+        self.item = item
\ No newline at end of file