3 levels. These didn't thrill me as some have... and Circle Jerk has a bit of smearing if you're looking at the platform next to you as it moves (somewhat unavoidable, given the Marathon engine). Still fun, though...

An open arena with a tower in the center, and a spiral path around the outside to reach it. This version fixes the zero length line bug the original had.

When I first tried this, I hated it. After about 3 minutes, though... this is a pretty decent map. Well laid out in terms of ammo/weapons vs. open space... there's no free lunch here. You want stuff, you got to take chances.

If these maps remind you of the Suicide series, it's because the creator of that series got the three Demolition collections started. All three of these collections have 10 maps in them. Most in this set are modified M1 Bungie maps (very much in the spirit of the first few Suicide maps, only with better texture alignment. Great flow, more weapons and ammo than you can ever use, no aliens. Very nice.