For Ludum Dare 40 I created a top-down shooter where you defend a pair of planets from alien invasion.

The theme was “The more you have, the worse it is”, so as you level-up, you gain more powerful attacks and it becomes difficult to not shoot at the planets that you are trying to defend.

You can play it in a browser at almost.itch.io.
The Ludum Dare submission can be seen at ldjam.com