#10
Darktide is the closest thing on this list to Left 4 Dead 2 in structure: four players, relentless horde pressure, and the kind of moments where someone shouts a warning across voice chat half a second before things go catastrophically wrong. That immediacy is why co-op centrality scores so high. The Warhammer 40K setting is dense and atmospheric in a way that rewards players who are into it, but the missions work even if you have no idea who the God-Emperor is. Crossplay now covers PC, PS5, and Xbox Series, and the game has improved significantly since its rougher launch period. It earns its spot at the bottom of the top ten.