Asteroids in Java
The ultimate space shoot-em-up game.

Concentrate!
A spacey online version of "concentration," where you match pictures and build up your memory skills! Great images.

JD Lunar Lander
Fun applet that you can download or play online.

Juggernaut Corps
3d space shooter game - check out this free online demo.

Mankind
Brand-new multiplayer online space game between rival empires. Click on "beta" to join.

Next Stop Mars!
An online Martian adventure from Headbone.

Star Clock
Use the constellations to tell time.

To Boldly Go
Living life on a spaceship, fighting aliens, who could ask for more? Play-by-Email game.

UFO Attack
Java applet where you're under attack by UFOs.

Virtual Spaceship
A fun NASA game about flying over Mars.