Go to your game installation folder (e.g., Steam\steamapps\common\Batman Arkham City GOTY\Binaries\Win32 ). Right-click on and select Properties . Navigate to the Compatibility tab. Check the box for Run this program as an administrator .
bDisablePhysX=True
Solving the "Fatal Error" in Batman: Arkham City (QA Approved Build Jan. Verified) Go to your game installation folder (e