I don't know about the 13 inch model. That machine is known for having less-capable graphics hardware. Of course, L4D2 isn't exactly a cutting-edge game, either, and it's based on an engine that was used in older games as well. (Not that I mean that as an insult, I think that all of Valve's games based on that engine are great... the graphics are quite good, the physics are great and, most importantly, the gameplay is awesome.)
Cheat Codes – Left 4 Dead 2 hack trainer. At the Steam control panel, Right Click the “Left 4 Dead 2” option, and select “Properties” under the “My Games” tab. In the General tab, select “Set Launch Options”, enter “-console” in that field, and accept it. Start the game,. Left 4 Dead 1 and 2 are coming to the Mac! March 8, 2010 - L4D Team Left 4 Dead 1 and 2 are coming to the Mac! We like the platform wars in the forums so much that we've decided to add a new platform to the fray. Later this spring, we'll be releasing both Left 4 Dead 1 and 2 on the OSX operating system for Mac computers, all through Steam.
Here's what its system requirements are:
OS: MacOS X 10.6.4 or higher (Snow Leopard Graphics Update required)
Processor: Dual core Intel processor, 2GHz or better
Video Card: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000
Not supported: OS X 10.5.x, ATI X1600 or X1900 graphics, NVIDIA GeForce 7 graphics or Intel graphics less than Intel HD 3000
That does seem to include your machine, so it may be worth a try.
Left For Dead 2 Mac Steam Mop
Oct 20, 2012 7:49 AM
Valve has a special Christmas gift for Steam users: a free copy of its zombie survival shooter, Left 4 Dead 2.
The game, which is available for Windows, Mac OS X and Linux, puts you in the shoes of a survivor in a zombie apocalypse. Your task is simple — survive until help arrives — but to do that, you'll need the help of other survivors, making co-operative gameplay a must.
See also: Apple Gives Out First '12 Days of Gifts' Freebie Today
The game will be free for download until Dec. 26, 1PM EST. You can download it from Steam by going to the Left 4 Dead 2 page and clicking 'Install game.' Steam's servers are currently overwhelmed with the demand, though, so don't be surprised if you have to wait a bit until you actually get the game.
Left For Dead 2 Mac Steam Version