Big open (dark) pit, lots of running rooms on the outside, more rechargers than you can shake a stick at.

Hard to know what to say about this one. It's more of an experiment than anything else. Mapmaking at times is beautiful... but there are a number of problems with the map (some delineated in the readme), and finishing it can be very difficult. (I never did find a save term, so when I got stuck in a poly well into the map, my only choice was to quit and start over... very discouraging.) Still, there is quite a bit to look at here - if you're building maps, this is probably worth a run-through, just for ideas.

A relatively short romp through an alien spaceship. No oxygen (but a couple of rechargers), plenty of ammo for the targets at hand. Get to the end. Pretty straightforward - only one place gave me a little trouble (because I was careless). Worth the download, if only to play some new stuff for a bit.

Double-level map - the bottom is a pillar-filled arena with lots of hiding spaces. The top is a ring around the outside, with teleporters and stairs jumping between the two. Dark. Unmerged.

A large central arena, with a maze of corridors around it. Lots of rechargers (though most aren't safe, unless the groups are small).

A single-level ship, emphasis on carnage. The enclosed physics model ramps EVERYTHING up, almost. There are no terminals - just kill stuff. There are a few secrets - finding them is up to you. (Suffice it to say that if you don't finish with the Flamethrower, SPNKR, and shotguns, you didn't find them all.) Watch those enforcers!

Two maps - the first is a single room, a simple arena with some higher points to shoot at the hill from. The second is an expansion of the first - the original room has fancier lighting and more weapons, and the whole map gets a second area.

So there's this guy, see? His name is Hamish Sanderson, and he's done a lot of messing with Marathon. And in April of 2000, when bungie.org ran a mapmaking contest called Simplici7y, he decided to enter it. But there was this problem - his map, while very cool to look at, didn't work very well. You could run through other players in places, and shots would stop working after a while... he tabled it. A year later, he dusted it off, got some poor fool to help debug it and playtest it, and dumped out on you, the unsuspecting public. It's pretty amazing for a 7-poly map... would definitely have won an award in the contest, had it not been a year late. Cool scenery, great flow, nice weapons tweaks, and a couple of surprises add up to a pretty fun map. Try it out. (More than 2 or three players and it's just a suicide fest... but what do you want for 7 polys?)

A big, wide-open arena with some cool tight passageways around the outside. Teleporters everywhere... you'll probably have to play it a few times to get the hang of what brings you where. Sizewise, would easily fit 6+, but weapons seem tight for 4 or 5.