: If the game fails to launch, right-click the mafia2.exe file, go to Properties > Compatibility , and set it to Windows 7 .
: You can buy the Director's Cut (which includes the classic version and DLCs) on GOG.com for a version that doesn't require a client like Steam to run. download-mafia-ii-classic
: Use the NTCore 4GB Patch to allow the game to use more virtual memory, which prevents crashes on 64-bit systems. : If the game fails to launch, right-click the mafia2