1. Launch the Steam app and log in to your account, if necessary.
2. At the top, open the section called “Library”. In the list on the left, look for the STALCRAFT game.
3. Right-click on STALCRAFT. In the list that appears, click on “Properties”.
4. The “General” section will open immediately. Uncheck the “Enable Steam Overlay while in Game” option.
5. Done! You have successfully disabled the overlay for the game on Steam. This window can be closed.