Valve announced today that it will be adding a new service to Steam, Family Sharing, which will allow players to share games with other house members. Valve announced that a limited beta for this new feature will be available next week.
The main goal of the feature is to give players the opportunity to play the titles of your friends, and family, while gaining your own achievements and keeping your own game data. Still, Valve has confirmed that two players can't be enjoying the same title simultaneously, with one that lends the game always having the priority over the other, while the friend will be given a few minutes to either purchase the game or quit playing.
"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. Family Sharing was created in direct response to these user requests," said Anna Sweet of Valve.
At the moment, it is not known when will this functionality be available to all users of the service Steam.