Really fun game! The visuals and animations are incredible. The audio is good too. I really like how everything flows into the center.
I used the white dwarves to stack the black holes on top of each other so it is easier to protect them.
Here is my score:
I can think of only of 2 negative things about the game. The first one is that the controls are a bit wonky and maybe the ability to turn with the keyboard would have been nice. The second is that I don't think it really fits the theme "expand" except that it is about the big bang.