diff --git a/vollerei/abc/launcher/game.py b/vollerei/abc/launcher/game.py
index 667cf3b..90ce47d 100644
--- a/vollerei/abc/launcher/game.py
+++ b/vollerei/abc/launcher/game.py
@@ -1,5 +1,6 @@
 from abc import ABC, abstractmethod
 from os import PathLike
+from pathlib import Path
 
 
 class GameABC(ABC):
@@ -10,6 +11,12 @@ class GameABC(ABC):
     def __init__(self, path: PathLike = None):
         pass
 
+    def data_folder(self) -> Path:
+        """
+        Get the game data folder
+        """
+        pass
+
     def is_installed(self) -> bool:
         """
         Check if the game is installed
diff --git a/vollerei/abc/patcher.py b/vollerei/abc/patcher.py
index 5bb3fb7..72de8a2 100644
--- a/vollerei/abc/patcher.py
+++ b/vollerei/abc/patcher.py
@@ -9,8 +9,28 @@ class PatcherABC(ABC):
 
     @abstractmethod
     def patch_game(self, game: GameABC):
+        """
+        Patch the game
+
+        If the game is not installed then it'll raise `GameNotInstalledError`, if the
+        game version is not supported then it'll raise `VersionNotSupportedError` and
+        if the patching fails then it'll raise `PatchingFailedError`.
+
+        Args:
+            game (Game): Game instance to patch
+        """
         pass
 
     @abstractmethod
     def unpatch_game(self, game: GameABC):
+        """
+        Unpatch the game
+
+        This method unpatch the game by restoring backups and removing the patch files.
+        It'll fail if you removed the backup files, in that case you'll have to repair
+        the game.
+
+        If the game is not installed then it'll raise `GameNotInstalledError` and if the
+        unpatching fails then it'll raise `UnpatchingFailedError`.
+        """
         pass
diff --git a/vollerei/hsr/launcher/game.py b/vollerei/hsr/launcher/game.py
index 2936b8c..a550b70 100644
--- a/vollerei/hsr/launcher/game.py
+++ b/vollerei/hsr/launcher/game.py
@@ -19,17 +19,28 @@ class Game(GameABC):
     def path(self) -> Path | None:
         return self._path
 
+    @path.setter
+    def path(self, path: PathLike):
+        self._path = Path(path)
+
     def data_folder(self) -> Path:
         return self._path.joinpath("StarRail_Data")
 
     def is_installed(self) -> bool:
+        """
+        Check if the game is installed.
+        """
         if self._path is None:
             return False
         if (
             not self._path.joinpath("StarRail.exe").exists()
             or not self._path.joinpath("StarRailBase.dll").exists()
+            or not self._path.joinpath("StarRail_Data").exists()
         ):
             return False
+        if self.get_version() == (0, 0, 0):
+            return False
+        return True
 
     def get_version(self) -> tuple[int, int, int]:
         """
@@ -86,9 +97,23 @@ class Game(GameABC):
         return (0, 0, 0)
 
     def get_version_str(self) -> str:
+        """
+        Same as get_version, but returns a string instead.
+
+        Returns:
+            str: The version as a string.
+        """
         return ".".join(str(i) for i in self.get_version())
 
     def get_channel(self) -> GameChannel:
+        """
+        Get the current game channel.
+
+        Only works for Star Rail version 1.0.5, other versions will return None
+
+        Returns:
+            GameChannel: The current game channel.
+        """
         if self.get_version() == (1, 0, 5):
             for channel, v in md5sums["1.0.5"].values():
                 for file, md5sum in v.values():