Bungie's Halo predecessor Marathon is on its way to the iPad courtesy of a fan-made port that Bungie not only approves of, but calls "totally sweet."

The Marathon games were standouts for the Apple Macintosh when gaming was not a focus for the platform, and the series pioneered the usage of mouse look in first-person shooters. Porter Daniel Blezek notes that the iPad edition will be released for free, with Bungie's blessing.

You won't have to wait long, either -- the port has already been submitted to Apple, and should appear in the App Store within the week.

[via Touch Arcade]