You have a new solar system and hope for there to be earth-like planets. But another solar system 3 light years away, is evil! They destroy solar systems. They decide to attack your system before you have planets. You must fight back and destroy that solar system! Protect your solar system by adding oort clouds, gas giants, rocky planets, and asteroids! Expand and protect your system and make it to round 40!
Play the sequel! https://scratch.mit.edu/projects/386864337/ The updated version, with new soundtracks and enhanced graphics. One soundtrack from Half-life 2 and one from Entropy: Zero. I don't know where I got each image. I just searched for them.