Hi,
Just a note to say that on my 27" iMac 2011 model with ML 10.8.2, I am running VMware Fusion 4 with Windows 7 in a virtual machine. I installed the new Tomb Raider 2013 game in that VM and it runs perfectly. The only thing I would note is that it uses a lot of memory, I have 14GB installed and alongside my regular apps - Mail, Chrome, Numbers, uTorrent and VLC Player - it can pretty much occupy the lot. But the game runs normally either full screen or windowed with hardly any noticeable lagging and obviously saves a lot of messing about rebooting into a separate OS with Boot Camp; you can do a bit of gaming, pause, swipe and carry on with your usual stuff on your Mac in seconds.
Just a note to say that on my 27" iMac 2011 model with ML 10.8.2, I am running VMware Fusion 4 with Windows 7 in a virtual machine. I installed the new Tomb Raider 2013 game in that VM and it runs perfectly. The only thing I would note is that it uses a lot of memory, I have 14GB installed and alongside my regular apps - Mail, Chrome, Numbers, uTorrent and VLC Player - it can pretty much occupy the lot. But the game runs normally either full screen or windowed with hardly any noticeable lagging and obviously saves a lot of messing about rebooting into a separate OS with Boot Camp; you can do a bit of gaming, pause, swipe and carry on with your usual stuff on your Mac in seconds.