Rec Room allows cross-play between 2 platforms

Supported crossplay platforms
Release Date: Jun 1, 2016
Official Website: Link
Summary:
Welcome to Rec Room, the virtual reality social club where you play active games with friends from all around the world. Customize your appearance, then party up to play multiplayer games like Paintball, 3D Charades, and even co-op adventures! Or just hang out in The Lounge (free membership required).
Supported crossplay platforms:
Rec Room is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Windows PC and Playstation 4.
Supported game modes:
  • Multiplayer
  • Co-operative
  • Massively Multiplayer Online (MMO)