Zombie Army 4 - wicked! And with the next gen patch too.
Absolutely game changing for my group of mates gamepass is. We've smashed through Warhammer Vermintide 2 (weirdly great, I never thought I'd play a warhammer game), World War Z, Gears 4, Halo 5/MCC, Overcooked 2, Halo Wars 2, Deep Rock Galactic, Fallout 76 all 4 player co-op.
Nice to add another to the list. Only reason we haven't done Destiny 2 or Outriders is because all 4 of us seem to be on at the same time. Still got more on our list like State of Decay 2, Remnant, Monster Hunter World, Sea of Thieves and Minecraft Dungeons,
In the past, playing together would be limited to Fifa / Cod which tire quick and not everybody enjoys.
Hoping for Dying Light 4 when that drops. I loved the 1st one and played the whole game in 2 player co-op. 4 would be awesome, but my only chance is if it's on gamepass as for the most part, nobody else wants to buy games anymore (even on sale)