I found this by way of a
thread over at Acmlm's. (They've posted some screenshots there, for those who're interested.)
Download the game
here.
It's basically a clone of the light-cycle scene in Tron. (Or like Snake, or Surround, or whatever similar game you've played.) You drive a bike, can only turn at 90-degree angles, and leave a wall behind you. Anyone who runs into any wall is dead, and the round continues until only one player remains.
Unlike most similar games, here in AA you can speed up by driving close to walls; this forces you to think carefully about where you go, since other players can take advantage of your walls to gain speed and quickly box you in. (Although it's near-impossible to box a player in completely, you can still easily leave him/her with only a tiny gap as the only way out.)
The game is simple to play, as there's not much to it. There are a few camera controls, but all that's really needed is 3 keys for brakes and turning. The bots put up a good fight, but I've become familiar with most of their tricks, and I've only been playing for a day and a half. o_O
Anyone interested in setting up a game or three? (I'm usually on late at night, starting around 10:30 or 11 EST. I wouldn't be able to host though...stupid 56k :/ )