A pretty straightforward arena, with a small tower in the center. (It's not set up for KOH, but if it were, the hill would be pretty difficult to reach. There are other reasons to go up there, though...) Comes in two versions (with and without aliens), and with a physics model to make the aliens less nasty.

This is a pretty fun map... lots of switches change the flow through various sections... some areas are only accessible via water, some become inaccessible until a switch gets flipped again. Nice water effects. .

9 maps. The two that were in the last iteration, and 6 more, plus a version of one of the originals with textures redone to be more lo-res compatible. Generally open, with lots of aliens.

Very big, with two distinct sections. There's an outdoor arena with some connecting passages for multiple entry points, and an indoor set of corridors that give you lots of corners to hide behind. A bit slow on 68K machines...

Made with the flow concepts of Bungie's What Goes Up in mind. Pretty nice flow. Contains a pretty superflous crusher (docs say it's for the player who likes to hide in small rooms and shoot people who come in (I guess like the spanker room in What Goes Up), but who'd go into it after the first time?). Update adds a bunch of new features (new stairwell, a window, some minor tweaks).

Inspired by Everyone's Mortal But Me. Look around for the invincibility...

This is easily the best KOH level I've ever seen. Wow, I don't think I've ever said anything like that before... Check it out. This map is good.

3 maps (ports of the maps in Suicide 25). A good batch, but very open-really slow on slower machines.

Several small, interconnected rooms. Sniper positions tend to be below a level, rather than above... pretty fun. 1.1 update added quite a bit of new space (including an out-of-the-way arena), and changed the alien balance. 1.3 update aligns textures, adds lots of water, and seems to decrease total alien population. This is no longer a small map.