Square Heroes will allow cross-play between 2 platforms

Square Heroes
Release Date: Apr 9, 2015
Official Website: Link
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
Crossplay platforms:
Square Heroes will support cross-play across multiple platforms. It will be possible to play together with your friends on Playstation 4 and Windows PC. Please check out all the details on the game's official website!
Cross-Platform Combination Details:
Source: Link
Additional Info: none
Summary:
Join the Galactic Tournament in this fast-paced comical action shooter. Level-up your Hero and unlock an arsenal of weapons. Lay waste to your friends and foes in local, LAN and online multiplayer matches, or hone your skills in single player and custom games.
Screenshots:
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Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative