- Not compatible with OS X 10.11 El Capitan and later OS X.
- Requires Steam and a Steam Account to play.
- This only includes the Mac OS X version of the game on Steam. No Windows version with this purchase.
- Aspyr does not recommend that you play Call of Duty: Black Ops on any of the following unsupported graphic chipsets: HD3000 (2011 Mac Mini, 2011 MacBook Air, 2011 13” MacBook Pro) HD4000 (2012 13” MacBook Pro) ATI Radeon HD 2000 series, HD 4670, HD 6490M, HD6630M NVIDIA 8000 & 9000 series, GT100 series, 320M, 330M Intel Integrated GMA950, x3100