Dead Island 2 multiplayer, How does co-op work & is it crossplay?

The Dead Island 2 multiplayer details have been revealed. Here is how co-op works and whether it is cross-play or not. Plus, how many players can connect?

Dead Island 2 Multiplayer: How to Unlock Co-Op Play

Dead Island 2 Could be Re-Revealed This Summer and Launch in

Dead Island 2 multiplayer: How to play co-op and what progress

Dead Island 2: Release date & time, platforms, setting

Dead Island 2 co-op multiplayer - how to unlock the mode

Co-Optimus - Review - Dead Island 2 Co-op Review

Zombie Army 4: Dead War

Base' PS4 / Xbox One consoles can't host Dead Island 2 co-op at launch

Co-Optimus - Review - Dead Island 2 Co-op Review

Technical FAQs

Here's Your Complete Guide To Dead Island 2 Multiplayer

How to play Dead Island 2 multiplayer with online co-op

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How to play Dead Island 2 co-op multiplayer