The 2014 Global Game Jam was one of the most interesting experiences I've had making a game. I had a lot of trouble coming up with an idea for the theme, "We don't see things as they are, we see them as we are." I settled on a top-down escape-the-mental-hospital game, where the player's imaginary demons would be more prominent as their sanity decreased (like Don't Starve or Amnesia).
I originally planned to work solo during this event, but I was fortunate to have some really talented people that helped me out. Kacy Corlett is responsible for all the art, and was absolutely amazing to work with!
Unfortunately there isn't a playable version due to some interesting controller issues, but there's a YouTube video of me playing the game. Turn up the volume!