Really awesome level design! I stupidly had my headset turned down initially and thought you didn't include audio because you were in the vacuum of space :p But my stupidity gave me the idea that perhaps you could remove all the audio and just have the sound of breathing inside your helmet, which would then become more struggled when you started running low on oxygen? Could make for a very atmospheric and intense experience :)
Other than that I really loved the game, I personally would have preferred simple WASD controls but maybe that's just a preference. Also wasn't sure how the jump mechanic worked initially and I yeeted myself into space lol.