Finally found time to install and try out System Shock 2 on my 1.2 rMB. Runs beautifully, although System Shock 2 harks from circa 1999, the version I play has many upgrades/mods that vastly improve the graphics over the original release, while retaining the deep and at times terrifying gameplay. My MacBook runs it perfectly; frame rates are solid, temperatures are reasonable (1440x900) and the audio is awesome for such a small system.
After some experimentation with mods & config files System Shock 2 not only runs well, it looks fantastic for a game that is now 16 years old thanks to a very healthy fan community. I also used Intel`s Power Gadget 3 to help setup up the game on the MacBook by monitoring/logging the CPU/GPU behaviour to prevent the SOC from thermal throttling and killing the game experience.
If you are into Sci-Fii, horror, survival, FPS, RPG System Shock 2 has it all all and much more. Obviously the graphics are dated in comparison to the latest titles, equally for gameplay, storyline and amazing soundscape System Shock is still a truly relevant game that is both challenging, absorbing and unforgiving. System Shock 2 runs in a compatibility layer (Wineskin) on OS X and is available from GOG, for those with rMBP`s, be prepared for silent fans
n.b. I tend to raise the rear of my rMB for ergonomics, playing with the Notebook on a pillow etc will significantly reduce the passive cooling efficiency, likely result in throttling, reduced frame rates etc.
Q-6