Skullwaker on 16 February 2015
I'd never buy a 5 hour game with no multiplayer or online component for full price. No matter what the game is.
As for The Order, I've seen enough of it to know that it's not my type of game. So its length is irrelevant to me anyways.
Edit: Okay, so I just watched the "final boss" and...I'm honestly in disbelief.
