This is unfinished.
The game was fun Move a lpanet away from some oncoming comets/ meteors w/e... but there wern't enough dangers you could add some more to add style to the game. Add some fire balls that slowly burn a building down or a cloud that eats some of the plant and buildings that get in the way.
There wern't enough upgrades and the magnet bomb I never rarely used. Maybe have some things that support the planet during play, like something that refils the planet or a turret that shoots at commets breaking them up into smaller pieces.
The music was quite quite annoying so have some music in there that hightens the players reactons instead of having that lame shit you had in there.
You could add some sort of vibration effect to the game when something hits the planet. Depending on how big the thing was. There would be more vibration screen.
You could have a mini space ship that is purcahsed after and you controll it with the wasd keys. It automatically shoots at anything that comes into its range.
If you did have that space ship thing I suggested. Some meteors could have things that would be bad for the planet and it would be up to the mini space ship to destroy it if the turret can't.
Hopefully those suggestions w0uld amke the game less shitty than it currently is.