And so my guess is, if you play A Vampyre Story exactly the way the developer intended, and if you don’t encounter any bugs or sloppiness, then you’ll have a lot of fun. But if you keep having problems, and if you keep struggling with puzzles, not because you can’t figure them out, but because the engine isn’t working properly, then each bug / mistake / badly designed puzzle will drain a little bit of fun from the game, until, perhaps, there isn’t any left. It’s just a question of whether you want to take the risk or not.