Asteroid ES
- Includes downloads, screenshots and instructions.
- http://www.epochstar.com/aes.php

Agendaroids
- A vector-based rock shooting game played in space for the Agenda PDA.
- http://www.newbreedsoftware.com/agendaroids/

SDLRoids
- An Asteroids clone for Mac OS X, Windows, or Linux with powerups, shields, a physics model, and sound.
- http://eongames.com/games/sdlroids/

Asteroids3D
- First person shooter for Linux inspired by Asteroids and The Empire Strikes Back. (Open Source, GPL)
- http://www.psc.edu/~smp/a3d/

SpaceGame
- A simple, networked multiplayer game for Java similar to Asteroids.
- http://shh.thathost.com/pub-java/html/SpaceGame.html

Asteroids
- As a lone fighter pilot leading a convoy of bulk cruisers into deep space, you job is to blow a way through the uncharted asteroid field. (Windows)
- http://www.adders.org/freeware/asteroids.html