Astro Battle

From Lava Lord Games:

Astro Battle is a multiplayer online space game where players build custom spaceships and pilot their creations against other players. The spaceships in Astro Battle are made up of modules. Modules contribute some ability or property to the spaceship. Some examples of modules are: bridges, thrusters, cannons, torpedo bays, reactors, and batteries. A ship's performance and abilities are influenced not only by the modules the player selects, but the arrangement of the modules. Piloting takes place in arenas - large metallic cubes in space. A Player can join an arena by challenging another player to a space duel or by joining a dedicated server (which can host several players at a time). Astro Battle also has a practice arena for testing ship designs offline. Membership is free for an unlimited amount of time.

Version 1.0.8 features new Expansion Pack.