Sometimes, an installation corruption can occur, which causes the game to not work correctly. In order to verify your game files, please follow the next steps:
- Launch GOG Galaxy.
- From the Library section, click on The Medium.
- Click the "More" drop down.
- Hover the mouse over "Manage Installation".
- Click "Verify / Repair".
- Confirm the request by clicking "VERIFY GAME" in the pop up.
- GOG Galaxy will verify the game files.