A very large, sprawling level with a wide variety of playing areas (open, narrow corridors, and everything in between). Lots of lava to die in... some smearing due to sight lines longer than 28 WU's, but only in a few places. Is built with an, um, interesting physics model... Let's just say you'll see something you haven't seen before. It's not at all clear what this update adds... (the readme doesn't mention changes, and I didn't see anything radically different when I ran through it.)

A three-level solo scenario, from someone who learned an awful lot from the likes of Bungie, Tony Smith, and Randall Shaw. The storyline's cohesive, though not pulitzer material... the levels are very playable. The near-constant juggernaut explosions add a novel lighting effect to the third level. Definitely worth a look. Update fixes a few missing or misaligned textures.

Several rooms, linked together. Some rooms have pillars to dodge behind, and there's some Jjaro Goo to swim in. The included physics model provides invisible Pfhor.

Cross-and-ring catwalks surround the hill, which is enclosed in a cage... the sectioned areas of the floor below provide teleporter access to the cage. You can't shoot out once you're in, and you can't escape... and it's really, really small if someone decides to join you. Good for Prisoner on the Hill games.