This obscure superpower even extends to Steam’s remote play feature.
What Is Steam Remote Play?
Streaming happens over your local connection via Wi-Fi or wired Ethernet.
Valve
For an optimal experience, ensure that at least thesource computer is wired into the networkrather than using Wi-Fi.
If both devices could use a wired connection, that would be best!
The first order of business is adding your non-Steam game to Steam.
Open Steam, then go to Games > Add a Non-Steam Game to My Library.
Check your Steam Library and you’ll find any games you’ve added in the list.
It won’t have the same details you would see with a native Steam game.
Now for the fun part!
Head over to your equipment with the Steam app or to another computer running the Steam client.
Go to the library on the target machine and look for the game’s entry.
Instead of a “Play” button, you’ll see a “Stream” button.
it’s possible for you to then navigate to the library as usual and launch the non-Steam game.