Take a control of huge space vessel called Radiant Star. Protect your vessel from all out attack by enemies. Buy weapons and upgrades to resist enemy attacks.
Shoot the incoming enemies to protect your base. Collect weapons and turrets that automatically fire on the incoming missiles. Push the turrets around the battlefield to take advantage of their range and abilities.
A nearby supernova explodes throwing you and your ship 500 light years away from home. Hunt down asteroids for required resources while protecting your ship from a fatal collision. Your fate is in your hands, good luck commander.
This is a pretty cool bullet hell shooter which uses the Stage3D technology. (It defaults to 30 fps but if you got a nice graphics card, go to Options / Graphics and turn up a notch to 60 fps for smoother gameplay.