Showered with Grenades, with sniper ducts above most of the rooms. Very nicely done.

Knock your opponent(s) into the lava... watch the damn troopers, though.

Sort of a Waldo World lookalike. Very clean. Comes in solo and net versions.

These maps are converted versions of the original Marathon net maps. They are tweaked and adjusted to weird ends to provide enjoyment. More of novelty than anything.

Big, lots of open spaces, insanely difficult with aliens. With aliens off, would make a great open level for 6-8 players.

A very large arena (author recommends 6 players). A little disorienting, but lots of open space.

6 levels. Newest level is vacuum. Some interesting touches. Best for folks who have mastered vertical aiming. Nice staircase in Double Helix.

A central pillar and four outside rooms. All the good ammo's on the pillar, but you're such an easy target...

This is the final release (maybe) of what I called Zeuropa (below). 13 levels, some the same as in Zeuropa, some different... The author says these are all the ones that are semi-decent and don't crash. I'd agree that they're pretty good. Still no docs.