One of the delightful things about Steam is that games which are developed on Steam can be sort of tracked to a limited extent using a third party website called SteamDB. As such, one thing that has already appeared is the achievements.

I'll warn you that this may be a bit spoilery, so if you don't want spoilers, steer clear.

Yeah, they update database often. It reveal some plot and romance option already. But if you don't care about that, you should checking this database.