It's this indie side scrolling game on Steam that's actually a lot of fun.
You play as this random guy playing Dungeons and Dragons with his friends, and when you take a break to go to the bathroom you are "drugged" and end up in this mysterious castle, which is where the game progresses.
A silly story, but gameplay wise it's pretty fun, I haven't played too much but going in The Mines dodging boulders is a heck of a lot of fun. Haven't gotten to any boss fights yet.