If Stronghold, Stronghold Crusader, Stronghold Crusader Extreme or Space Colony crash immediately after launching there maybe a compatibility issue with your version of Windows.

Please run the application compatibility wizard to resolve the problem.

On Windows 7, Windows 8 and Windows 10:

Browse to the game directory (e.g. C:\Program Files (x86)\Steam\Steamapps\common\<GAME NAME>), right click on the game executable (e.g. Stronghold.exe) and click Troubleshoot Compatibility