Well, this is a weird one. It’s actually not really a game, more of a exploration app. ‘PD – Prop discoverer’ uses the Unreal Engine and is able to pull off some really amazing graphics. All you do is wander around a castle and search for cards in order to unlock more areas to explore. So, my guess is, it’s some kind of paid demo. You can buy the Game here or hit the jump for a short trailer!