Steam Family Share Beta
XBox One got rid of it and Steam is adopting it.
Here’s the deal: Steam Family Sharing is for close friends and family. By authorizing a shared computer they will have access to your library to earn their own achievements and have their own save files.
“Our customers have expressed a desire to share their digital games among friends and family members, just as current retail games, books, DVDs, and other physical media can be shared,” explained Anna Sweet of Valve. “Family Sharing was created in direct response to these user requests.”
Here’s the catch: if you both want to play the same game at the same time, the friend borrowing the game will be prompted that they have a few minutes to either buy the game or quit playing.
This is a very limited beta and if you would like to try and get in on it go to http://store.steampowered.com/sharing and join the group.