Steam Friender shows a filtered library of your steam games by co-op, local co-op, and multiplayer. You can choose a game from your library that you want to play and it will match you up with people who play similar games as you, and is also interested in playing the game of your choice.Your first login might take longer to load your game library.
The site works by collecting user information provided by Steam using their Web API. To find more information on this, click here. To get started, click the sign in through Steam button.