Requires java. Will perform better if you download and run the jar file rather than play in the applet. Another reason to download is that the aliens are pretty mean so it plays better in full screen as you can see them coming earlier.

Instructions:
Use w,s,a and d to move around. Use the left mouse button to shoot and throw things. The red rock (follow the red arrow) is your seed rock. Throw other rocks at it to create your planet. You can get rocks by destroying meteors (follow the brown arrow). Be careful not to let any meteors hit your planet when it is small as it will break apart. Once a planet is finished you can start another one. A planet is finished by adding five clouds to it. Clouds are added by finding ice blocks (follow the blue arrows, they are only available once your planet is a certain size) and throwing them at your planet. Clouds will cause grass to grow which will earn you more points. The is no end game so the aim is just to get a high score.