Team Fortress 2: Robotic Boogaloo

Robotic Boogaloo was a major content update for Team Fortress 2, released during the May 17, 2013 Patch. It was the first ever community-created update, with 57 different community-created cosmetics being added into the game. The 57 cosmetics added are robotic versions of ordinary TF2 cosmetics, spanning all classes. Along with this, 10 new robot-related Unusual effects, 4 new action items - the Battery Canteens, Pallet of Crates, Random RoboKey Gift and Pile of RoboKey Gifts - and one tool - the RoboCrate Key - were added to the game.