I've played through #RedCandleGames' #Devotion a few days ago.
I've been putting it of, because their previous game Detention was already creepy as fuck. After it vanished from stores, it also vanished from my mind for a while.
Last October however, it was heavily recommended by #WatchOutForFireballs .
It's only 2-3h long and scary as all hell. It has some (good) jump scares, but its high points are the creepy atmosphere and story.
I can only extend the recommendation if you haven't played it.