diff --git a/vollerei/exceptions/patcher.py b/vollerei/exceptions/patcher.py
index a53cb96..9ed5d8a 100644
--- a/vollerei/exceptions/patcher.py
+++ b/vollerei/exceptions/patcher.py
@@ -11,3 +11,21 @@ class VersionNotSupportedError(PatcherError):
     """Exception raised when the game version is not supported."""
 
     pass
+
+
+class PatchingFailedError(PatcherError):
+    """Exception raised when the patching failed."""
+
+    pass
+
+
+class PatchUpdateError(PatcherError):
+    """Exception raised when the patch update failed."""
+
+    pass
+
+
+class UnpatchingFailedError(PatcherError):
+    """Exception raised when the unpatching failed."""
+
+    pass