A couple of bugs, but a new one's coming out soon.

Frigidman's first ever full map made for any of the marathon series. Its a novelty item! This map was the first ever map recorded in history to be made from the ground up for Marathon.

A major upgrade to XenoPhobia (see below). Check out the BobCrusher!

A large circling hallway system that goes around an "arena" like you've never seen before. Remeniscent of the tron disk fights, however this time you have more than a flimsy little frisbee!