

Early Beta screenshot
Based on notes from the interview, however, it seems that this is now a Bungie-sanctioned port.
Marathon is a first person shooter developer by Bungie Software for the Macintosh in 1994. It was a Mac exclusive launch and was released shortly after Doom was first released for the PC. Bungie later went on to be acquired by Microsoft and released the popular Halo game series for the Xbox. Halo was originally developed for the Mac as well, but the release was delayed after Microsoft's acquisition.For many, Marathon will invoke a wave of nostalgia; for others, this will be the first experience with the seminal Mac FPS. I hope all players appreciate Bungie's commitment to their fans. It's not every company who would support bringing a 16 year old game back to life!
The iPad version of the game has reportedly been submitted and will be released for free.
Article Link: Bungie's Marathon Officially Coming to iPad