Greetings, Iím a new owner of a late 2012 13-inch (non-retina) MBP. I wanted the retina model, but couldnít do without an optical drive, or fathom owning a laptop in which I couldnít upgrade RAM or swap out a HD (I anticipate going to a faster SDD, someday).
Specific specs of my 13:

-2.9GHz i7
-Intel HD Graphics 4000
-16GB 1600MHz RAM
-1TB (big!) 5400rpm (yet slow) HD
-Generally running Windows 7 Ultimate (64-bit) via Bootcamp (But 250GB set aside for OS Mountain Lion when desired)

So I wasnít foolish enough to be buying this particular laptop as a gaming machine. Itís primarily a portable internet, word processor, music management machine and occasional BMW tuning machine for me. I would however, like to OCASSIONALLY like to play a game here-and-there.

What Iíve found is that the specs of the device, donít necessarily directly relate to how the 13-inch MBP will play particular games. I had some hopes and expectations that it would at least handle a few of my old favorites (Fallout 3 being #1 on my wish list), but itís really hit-or-miss as to what works (or can be tweaked to work) properly. One of the main issues seems to be the integrated Intel HD 4000 graphic chip. Wish there was a way to allocate more system memory manually. So what I was hoping to do with this thread was compile a list of games known to work with the 13-inch MBP/MBA or other MacBook with the integrated Intel graphics chip. If anyone is interested in contributing to the list, it would be much appreciated. I was thinking it would be good to include the following:

-Name of game/version
-MacBook specs
-Necessary tweaks to get it running right
-Game graphics settings and results

So far, Iíve tried Fallout 3 and after some tweaking, got it running, but found it to be too unstable. GTA IV has given me some strange draw issues that I have not tried to troubleshoot as of yet. My first fully-operational success has been:

-Mafia II
-Specs/OS stated above
-No tweaks necessary and a very playable 30-34 FPS on High settings! A wired USB two-button mouse however, is a necessity (no Magic Mouse and my other wireless USB two-button mouse was jumpy)

Again, I would sincerely appreciate any contributions to this list of ďconfirmed stable/workingĒ games.