Gears of War 4 allows cross-play between 2 platforms

Supported crossplay platforms
Release Date: Oct 11, 2016
Official Website: Link
Summary:
A new saga begins for one of the most acclaimed video game franchises in history. After narrowly escaping an attack on their village, JD Fenix and his friends, Kait and Del, must rescue the ones they love and discover the source of a monstrous new enemy.
Supported crossplay platforms:
Gears of War 4 is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Windows PC and XBox One.
Gears of War 4 is also known as:
  • GoW 4
  • Gears 4
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
  • Split screen
Supported player perspectives:
  • Third person