Rating: T for language, psychological horror, and suicide
Word Count: text adventure game (play in browser)
Warnings: set after season 10 finale
Author's Notes: for the prompt "A horror (possibly case) fic featuring Sam and Dean along the lines of House of Leaves or the Dionaea House--essentially, a place or places that are sentient, shapeshifting, and psychologically damaging. Bonus points for mental breakdowns and subsequent hurt/comfort."
Summary: The Darkness is closing in, and the Winchesters' only hope of fighting it is in a haunted house deep in the West Virginia mountains.
Play as either Sam or Dean, or choose to "get the backstory" of the other brother to switch characters.