A multilevel, familiar-feeling map... but you haven't seen this before, at least not in this form. Lots of tight spaces, good flow... but also easy to get trapped, easy to find yourself in a corner.

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, ...