Over the past year item creators have made over $2 million selling their wares for Valve's Team Fortress 2 through the in game Mann Co. Store.
"The Mann Co. Store represents an important new direction for games and game makers," said Valve president Gabe Newell.
"By leveraging and extending the platform features of Steam, Team Fortress 2 has enabled a viable marketplace for independent content creators and significantly extended the gameplay experience in an incredibly short amount of time."
To celebrate the one year anniversary of the Mann Co. Store, Valve has introduced a Manniversary Update which includes the Steam Workshop. This new feature allows testing and sharing of new user created items, and the ability to track the item's status.
Other new features include 30 new pieces of content, decals and better game perfomance, making it one of the largest updates for Team Fortress 2 so far.
Team Fortress 2 was part of The Orange Box collection of games, and launched in October 2007.