A 7 level nethop pack. Every single one of these maps is worth playing on its own (well, okay, the vacuum level's sort of a pain in the ass), together they total a monstrous netgame potential.

3 more levels from a master. One is simply a fun bit from a RED solo map, but all three are really playable - you'll spend most of your time getting blasted by friends, and very little time trying to figure out where to go next. Those RED weapons are just built for carnage, aren't they?

A square arena, with a trough around it... and a water elevator to bridge the gap. Obscene numbers of objects/baddies complete the picture.

A one-level (okay, two if you count the intro room) demo of an upcoming scenario. Portal of Sigma is a Big House inmate, and a promising one.

24 levels, some simple, some more complex... all quite playable for small to medium groups. Emphasis is on movement... and it works well. With 24 maps, your net group shouldnt' get bored too quickly...

Small & fast map with lots of altitude differences. MOTM Jan 2001.

Otherwise known as Marathon 1-2-3 Converter, this tool will convert M1 data files (maps, shapes, sounds, you name it) to Aleph One format. It's more than just a simple translator - when you tranlsate a map, you also get the MML files needed to make it work as the original. Source is included.

A very pretty map, one that takes good advantage of Aleph One's lack of line-of-sight problems. A very curvy map (surprised?) with (pretty amazing to me) not a single platform.

A 6-level (well, a few more, but who's counting) map containing tutorials on making a slew of cool effects in Marathon. These range from trivial (more realistic smoke contrails via a single change in the physics model entry) to seriously complex (swinging doors, breaking windows, exploding walls). You even get tasty bonuses like a real laser sight and a working flashlight (this is too cool for words). It's all described in easy-to-follow language, and shows off some of Chris's amazing Killing Time artwork. Absolutely worth a download, for all scenario makers. Upgrade adds curved archways, ...