The developers of Crazy Justice, a game I've only just come to learn about by developer Black Riddles Studio, will support cross-platform play between the PC, Xbox One, and even the Nintendo Switch.
Crazy Justice is powered by Unreal Engine 4, and is a new third-person shooter that features destructible environments courtesy of NVIDIA's PhysX technology. The game will see you taking control of heroes that have to save the world from evil, with plenty of missions along the way, new heroes, new special weapons, and more so that you can take evil down.
You can build your own custom skill decks, where you can construct barricades, walls, turrets, and other defense systems to keep the evil hordes at bay. Crazy Justice will be a multiplayer-focused game that still sports a single-player campaign, but the cross-platform play between so many platforms is awesome. Black Riddles Studios, kudos - you deserve the praise for this. Other game developers: learn from BRS.