I think this fits really well into the video game ambience brief and with a nice clean finish, I don't think that the chromatism really lands for me however. This is by no means the only way to approach it, but often having a strong initial tonal pallet established and then branching out in note choices from there can work. You're giving an implied 'direction' to any chromatism then added, borrowing from different keys in relation to where you came from to create and resolve tension.
A strong submission and hella vibey in all however.