Really good movement physics, and a weird, desolate atmosphere. I'm really interested to see where this goes (and hoping it doesn't rely solely on weirdness as a selling point). Could turn out really good :~) 

At the moment, the only incentive is upgrades, which feels hollow and from my own game-design perspectives, is kind of annoying. Incremental achievements just feel like stringing the player along, to me. However! The game is still early in development, so this may not always be the case. Regardless, I hate fun chumbing around.