https://wccftech.com/steam-remote-play-together-leaves-beta-tons-of-great-local-multiplayer-games-on-sale/

Last month Valve began beta testing for Steam Remote Play Together, a new feature which lets you play all your local multiplayer games online with friends. It’s kind of a brilliant idea, and now Remote Play is available to all Steam users! Valve released a new trailer to celebrate the feature’s full launch, which you can check out below.

Instantly share your Steam local multi-player games with friends over the internet, for free. Using Remote Play Together, one player owns and runs the game, then up to four players — or even more with fast connections — can quickly join in the fun.