Gloomhaven

The sheer amount of content in this box is ridiculous; we've played maybe fifteen scenarios and the map tiles still surprise me. Playing without a GM actually works, since the monster AI decks handle all the enemy turns and let everyone stay in character.

The scenario book does all the setup work for you, which keeps my group actually playing instead of flipping through rulebooks for an hour. We finished the first two missions last weekend and everyone's already arguing over who gets which mercenary next session.

The box alone is absurdly heavy when it arrives, but the GM-less co-op setup is the real payoff — my group of four has been running the same campaign for weeks and nobody has to play referee. The legacy-style map stickers and unlockable classes keep everyone arguing over who gets to claim what after