Gears of War 3
Like Halo, all of the Gears games—even Judgement—are fun co-op games. However, I’m going to specify Gears of War 3 for this list as I think it’s still the best game in the series and it features 4-player co-op, too. This was only seen one other time, in the previously mentioned Judgement, and while I can imagine it was a pain to implement, it makes Gears 3 so much fun to go back to in 2025. You can bring your whole crew and play Gears of War 3 all at the same time. And thanks to Xbox’s backwards compatibility and FPS boost, playing this aging cover shooter is as easy as chainsawing a Locust drone’s head off. -Zack Zwiezen
