Tannenberg will allow cross-play between 2 platforms

Tannenberg
Release Date: Feb 13, 2019
Official Website: Link
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
  • Massively Multiplayer Online (MMO)
Supported player perspectives:
  • First person
Crossplay platforms:
Tannenberg will support cross-play across multiple platforms. It will be possible to play together with your friends on Playstation 4 and XBox One. Please check out all the details on the game's official website!
Cross-Platform Combination Details:
Source: Link
Additional Info: none
Summary:
Tannenberg is a standalone expansion to WW1 multiplayer FPS Verdun, taking the 1914-1918 WW1 Game Series to the Eastern Front. Warfare on the border of the Russian Empire is a tense battle for survival – can your squad weather the storm of battle?
Genres and Themes:
Shooter Simulator Strategy Indie
Action Historical Warfare
Screenshots:
Image 1Image 2Image 3Image 4
Artworks:
Image 1Image 2Image 3Image 4
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
  • Massively Multiplayer Online (MMO)
Supported player perspectives:
  • First person