I liked this one! Even though it's very short, everything is just done right for an Ao Oni game. The atmosphere is unnerving, the puzzles are good, the dialogs are short and straightforward - just a perfect textbook Ao Oni game. And innovations like the ventilation system, boss battles, and even the damn footstep sound were good too. I'd love to see a longer Ao Oni game from you, with original characters and puzzles. Ao Oni Aftermath is also a good game, but it lacks something that this game has, I'm not sure what.