Guns of Icarus Alliance allows cross-play between 4 platforms

Supported crossplay platforms
Release Date: Mar 31, 2017
Official Website: Link
Supported crossplay platforms:
Guns of Icarus Alliance is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Windows PC, Playstation 4, Linux and Mac.
Summary:
Guns of Icarus Alliance is the complete PvE experience while maintaining all the PvP contents, including achievements, progression, cosmetics, and data from Guns of Icarus Online. From a single pilot to as many as 16 players can unite in their battle for the wasteland, completing objectives in all new PvE/Co-op game modes like capturing cargo or destroying drilling platforms. You just need to grab your friends and go. Choose a faction and unlock their special costumes, weapons, and airships as each victory brings your faction one step closer to their ultimate goal of reshaping the world.

Supported game modes:
  • Multiplayer
  • Co-operative
Supported player perspectives:
  • First person
  • Third person