I've been impressed by Fellowship ever since I first got my hands on it last year. The pitch for the game is one I'm surprised nobody ever thought of: MMO dungeons without the MMO.
Imagine a typical MMO party—one healer, one tank, and some damage-dealers—and then give them names and characteristics that resemble MOBA heroes. That's Fellowship, a hero-based co-op RPG where parties of four clear through increasingly difficult dungeons and collect loot.