I've never used Steam.
Several years ago it was necessary to pay for as many copies of the game as many people were expected to join the LAN party – otherwise the games would refuse to connect with each other. Is this still necessary on Steam?
I'm thinking about purchasing the Civilization V for Linux to play with my wife.
I don't intend to play over the Internet.
Best Answer
It depends on the game.
In the case of Civilization V, you will only need one account if you want to play over LAN. You will have to login on both computers using your account. However, you might have to run Steam in offline mode on your wife's computer after logging in. To do this, look for the "Steam" menu at the top left, and click on "Go Offline".