diff --git a/source/Game.py b/source/Game.py
index fcf8e7c..fdb6f7c 100644
--- a/source/Game.py
+++ b/source/Game.py
@@ -1,14 +1,44 @@
-from .definition import region_ID
+from . import wszst
+from .definition import *
+import glob
+import os
 
 
 class Game:
-    def __init__(self, path: str, region: str = "PAL"):
+    def __init__(self, path: str, region: str = "PAL", game_ID: str = "RMCP01"):
         self.path = path
         self.region_ID = region_ID[region]
         self.region = region
+        self.game_ID = game_ID
 
     def extract_game(self):
-        pass
+        extension = get_extension(self.path)
+        if extension.upper() == "DOL":
+            self.path = os.path.realpath(self.path + "/../../")  # main.dol is in PATH/sys/, so go back 2 dir upper
+
+        elif extension.upper() in ["ISO", "WBFS", "CSIO"]:
+            # Fiding a directory name that doesn't already exist
+            directory_name, i = "MKWiiFaraphel", 1
+            while True:
+                self.path = os.path.realpath(self.path + f"/../{directory_name}")
+                if not (os.path.exists(self.path)): break
+                directory_name, i = f"MKWiiFaraphel ({i})", i + 1
+
+            wszst.extract(self.path, self.path)
+            if os.path.exists(self.path + "/DATA"): self.path += "/DATA"
+
+        else:
+            raise Exception("This format is not supported !")
+
+        if glob.glob(self.path + "/files/rel/lecode-???.bin"):  # if a LECODE file is already here
+            raise Warning("ROM Already patched")  # warning already patched
+
+        with open(self.path + "/setup.txt") as f: setup = f.read()
+        setup = setup[setup.find("!part-id = ") + len("!part-id = "):]
+        self.game_ID = setup[:setup.find("\n")]
+
+        self.region_ID = self.game_ID[3]
+        self.region = region_ID[self.region_ID] if self.region_ID in region_ID else self.region
 
     def install_mod(self):
         pass
diff --git a/source/wszst.py b/source/wszst.py
index 3e4a025..248b794 100644
--- a/source/wszst.py
+++ b/source/wszst.py
@@ -28,3 +28,7 @@ def normalize(src_file: str, dest_dir: str = "./file/Track/", dest_name: str = "
         autoadd_path], creationflags=CREATE_NO_WINDOW, stderr=subprocess.PIPE)
     return 0
 
+
+def extract(file: str, dest_dir: str):
+    subprocess.call(["./tools/wit/wit", "EXTRACT", get_nodir(file), "--DEST", dest_dir],
+                    creationflags=CREATE_NO_WINDOW, cwd=get_dir(file))
\ No newline at end of file