I love the concept art but it needs more polishing. There needs to be more SFX and music, I need the pew pew pew and asteroids sound. The art for the game is good too but I feel this game is incomplete for me but good job! I love that I am also able to pick different assets for asteroids, do they have different effects?
Also try to fix the fullscreen button, as I am unable to press the unity fullscreen button, only the itch.io one.