This guide will enable your Raspberry PI to work with NVIDIA Gamestream to stream Steam games to your Raspberry pi. To use this Guide you must have a Gamestream ready PC with a Gamestream enabled NVIDIA GPU.
With this guid you get limelight integrated to Emulation station for quick access and the games will run 1080p / 30FPS with basically zero input lag (tested with a wired connection and Raspberry pi 2)
This guide is intended for Rasperry Pi 2 with Retropie, but should also work on a Pi B+
I strongly suggest you configure your host PC to use a static IP-address, before you start!