A spaceship. Extremely linear. Oh, yeah, and for the first half of the map, you'll be fighting hunters with your pistol...

A whole bunch of platforms that are invisible, except from above... set in space. Really tough to figure out where your enemies are... especially if you play with the motion sensor off. There's a catwalk around the outside for those of you who get queasy.

Very, very green, and very, very dark, with a very, very large number of fighters.

What it sounds like. Comes with replacement textures for three texturesets. (Some textures are used in more than one set.) Generally an interesting collection...