Steam

It was closer to $10, but Wandersong was worth every penny. It's a puzzle/platformer game where you play a bard, the main gimmick of the game being that you have to sing your way out of any problems you encounter. It feels like something that should get stale, but the game is always thinking up new ways to use the mechanic from communicating with ghosts, to making plants grow, to convincing bugs to move rocks out of your way. Great characters, great story, good soundtrack. Definitely worth trying if it's sitting in your library from a bundle or a sale.