diff --git a/aiocraft/mc/definitions.py b/aiocraft/mc/definitions.py
new file mode 100644
index 0000000..054139f
--- /dev/null
+++ b/aiocraft/mc/definitions.py
@@ -0,0 +1,18 @@
+from enum import Enum
+
+class Dimension(Enum):
+	NETHER = -1
+	OVERWORLD = 0
+	END = 1
+
+class Difficulty(Enum):
+	PEACEFUL = 0
+	EASY = 1
+	NORMAL = 2
+	HARD = 3
+
+class Gamemode(Enum):
+	SURVIVAL = 0
+	CREATIVE = 1
+	ADVENTURE = 2
+	SPECTATOR = 3