Outbreak: The New Nightmare will allow cross-play between 2 platforms

Outbreak: The New Nightmare
Release Date: Jun 20, 2017
Official Website: Link
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
Crossplay platforms:
Outbreak: The New Nightmare will support cross-play across multiple platforms. It will be possible to play together with your friends on Windows PC and Linux. Please check out all the details on the game's official website!
Cross-Platform Combination Details:
Source: Link
Additional Info: The New Nightmare supports native online play on PC and have native Linux versions. They should be cross platform online co-op capable. The console versions do not support online play though!
Summary:
Return to the roots of co-op survival horror as you face monstrous hordes, scrounge for supplies and attempt to survive the nightmare. You have one life. Make it count!
Screenshots:
Image 1Image 2Image 3Image 4
Artworks:
Image 1
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative