Team Fortress 2: Mann-Conomy Update (2010)

The Mann-Conomy Update was a major content patch for Team Fortress 2. In total, the update added 65 new items including community-contributed content from the Polycount Pack contest, new Cosmetics, weapons, Unusual effects, mini-games, tools, crates, and packs of cosmetics and weapons. The update also introduced the Mann Co. Store, Steam Wallet, and microtransaction system as well as item trading.