In-Home Streaming, a new feature of Steam, is now released to all users. Players who have multiple computers at home can immediately take advantage of the new feature.
Steam In-Home Streaming allows you to play your PC games on a lower-end computer, such as a laptop or home theater PC, or a computer running another operating system, such as Mac OS X, SteamOS, or Linux.
When you play a game using In-Home Streaming, video and audio are sent through your home network from your high-end gaming PC to another device in your home. From here, your keyboard, mouse, and controller input is sent back to the remote computer.