I don't think anyone has mentioned "Amnesia" yet. It's an interesting game that seems like it'd be right up Ross' alley. You play a character who wakes up in a spooky castle. The game explains that it isn't about winning or losing, but experiencing the game.
You have a sanity meter, but you wouldn't know it if you just started playing like I did. Sanity loss sounds like crunching bugs and it happens when you walk around in pitch black or experience something scary. You regain sanity by basking in light sources (like candles, sunlight, or your lantern with its finite oil supply) or by progressing the story.
And there's a nameless shadow trying to kill you that apparently has the power to smash parts of the castle (blocking your path) and make flesh walls.
It's on Steam right now for PCs and Macs. I haven't gotten very far in it, but it's pretty neat. Come join the fun!
Free Tip: Use Tab to bring up your inventory. Otherwise you won't be able to refill your lantern.