Nice, idiomatic chiptune sounds. These are all very well composed tracks and effective use of quartal harmony. However, I do feel like these tracks could have a bit more of a distinct personality to them. I know you said you didn't realize there was supposed to be a game concept, but I just feel like these could have a bit stronger identity outside of just being retro style chiptune. Either way, still really well written music, favorite track is Eerie Echo Ambience