Steam Remote Play Together is an evolution of the Steam Link and Steam Link Anywhere game streaming service: the idea is to play Multiplayer games with other people over the Internet. Remote Play Together started as a beta a few months ago and is now available to everyone.
The Remote Play Together beta allowed players to participate in games as if they were on the home sofa on Windows, Mac and Linux, but the final version, now also with support for players on iOS and Android.
Playing together and on all platforms
The Remote Play Together system makes use of the Valve cloud to allow multiplayer remote gaming with your Steam friends. The best is that only who creates the game needs to have the game in his Steam library.
The operation itself is really simple. You need to open the game on Steam, as always, and show the superimposed friends list (Shift + Tab). Then right click on the friend you want to invite and choose Remote Play Together.
This sends an invitation to the friend to join the session already in Windows, Mac, Linux, Android or iOS, while the streaming of the game begins. The friend will need to accept the invitation through the chat in order to join the game. To use it from your mobile, you must also have Steam Chat and Steam Link installed and configured.
Note that Not all games are compatible with Play Together, although you can filter your library from the Steam client to show you only those compatible with the function. If you still don't have any, here is a list with those that are Free to Play and Steam has also offered several compatible games to celebrate the launch.