Amnesia - The Dark Descent.

Just what happens when an unsuspecting mare ends up trapped in an abandoned castle, unable to escape. But what else happens when they find out the truth behind what really happened in the castle? What happens when they find out they're not alone, and they weren't the first pony to end up there?

Based on the Amnesia series (Cannon - not identical to what actually happens in the Amnesia setting, although there may be some spoilers)

Title photo is placeholder - needs something more appropriate. If you have anything I could use, feel free to let me know!