Word on the official Legend of Grimrock forums is that the team at Almost Human is nearly finished with porting the dungeon crawler over to Apple's OS X, and they've kicked off a Steam key-filled public beta to celebrate. If you're a Mac gamer, you're in for a treat:
Folks, we're getting close to the release of OS X version of Legend of Grimrock and we need a little help with testing. Therefore we are launching a public beta today. To join the beta grab a Steam key from the list below.
*** The keys will expire once the beta is over ***
- OS X 10.6 or newer
- Graphics card supporting OpenGL 2.1 or later
- 2GB memory
The beta is only available in Steam because it is the best and easiest way for us to patch the game when issues are found.