This game feels like a legit indie game! The sounds, the mechanics and the flow of the game is really good. The use of gravity is very unique too. I really enjoyed it.
There was a time that I spawned somewhat close to a planet though. I think if you're fast enough, you'll be able to escape but sadly I wasn't. I don't think of it as an issue though, more of a test of your capability.
Thumbs up!