ARK: Survival Evolved allows cross-play between 4 platforms

Supported crossplay platforms
Release Date: Aug 29, 2017
Official Website: Link
Summary:
ARK: Survival Evolved takes on the survival genre with a unique blend of emergent multiplayer cooperation and competition. Players awake naked and starving on the beach of a mysterious island among a herd of other confused humans. On ARK, they must then hunt, harvest, craft, research technology, and build shelters to protect against scorching days, freezing nights, volatile weather systems, dangerous wildlife, and potential enemies. Use cunning strategy and tactics to tame and ride the many dinosaurs and other primeval creatures roaming the dynamic, persistent ecosystems across land, sea, air, and even underground. Build your character’s strengths and gain items, skills, and pet creatures using in-depth role-playing systems. Start a tribe with hundreds of other players to survive and dominate competing tribes...and ultimately discover the ARK’s true purpose.
Supported crossplay platforms:
ARK: Survival Evolved is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Windows PC, XBox One, Linux and Mac. Be aware that ARK: Survival Evolved has mutually exclusive combinations. That means not all listed platforms are able to crossplay with each other. Check out all possible combinations in the sidebar.
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
  • Massively Multiplayer Online (MMO)
Supported player perspectives:
  • First person
  • Third person
  • Virtual Reality