Here : https://ca.ign.com/articles/2019/10...player-games-online-with-remote-play-together A small overview of the feature : Remote Play works by one player inviting a friend to join their local multiplayer game via the Steam Overlay. If their pal accepts the invitation, the game is run through the host's computer and they begin playing together. The host player handles all the processing, while their friends hook in with their connection, controllers, and microphone. The game doesn't need to already exist in the friend's Steam library.
