
a5teroids is a fast paced "Asteroids" clone.
This game requires DirectX 9 and a fully compatible graphics card.
Currently this game is the demo game (edit: now 1 of 2 demos) included with Allegro version 4.9 (SVN). You can get the source there (the API of the development branch of Allegro has changed a lot, so I don't keep the source code here at all rather than keep two copies up to date).