You should have an account with Steam and at least one game installed. You will also need a computer running Steam on Windows 7 or later, Mac OS X 10.10 Yosemite or later, or Linux Ubuntu 12.04 or newer. Steam software on your computer, a Steam account and library of games.A router with Ethernet ports (5GHz wireless is not recommended for the Raspberry Pi).8GB or great microSD card with Raspbian Stretch installed.Now all you need to stream games from Steam to your Raspberry Pi is:

Previously you could install Nvidia GeForce on your PC (if compatible) and use the open source implementation of Nvidia's GameStream software (Moonlight) to stream games via your Raspberry Pi. And of course, the Raspberry Pi has a bunch of uses beyond being a game streaming box, too.What You Need to Play Steam Games on Raspberry Pi

And voilà, you've got a fully functional DIY Steam Link box, easy to connect with a range of gamepads and at $35 probably a lot cheaper than upgrading your router for stutter-free gameplay. Just make sure you're running the 'Stretch' version of Pi's OS (which has been default anyway since August 2017) and drop in a few lines ( here). On Monday, Valve's Sam Lantinga announced that the Steam Link app is now available in beta form on the Raspberry Pi 3 and 3 B+. Valve, however, is offering an alternative, and it comes in the form of Raspberry Pi. The Steam Link app continues to live on in mobile devices and smart TVs, so it's not the end of days, but this doesn't offer the same latency-mitigating clout as Ethernet-wired hardware. The simple black micro PCs designed to let you play games in the living room - or anywhere else in the house away from your gaming rig - is sold out everywhere and it seems Valve has no plans to produce more.

Steam link raspberry pi 3