This update is 100% created by the TF2 community. And when we say everything, we mean everything—the in-game content, the update hub website, the animated short, the comic, even the splash images in the Steam store. Even better, everything you created avoided the classic trap of using other companies’ intellectual property.

Valve has done something no company has done before; they outsourced the work of an entire update to the very people playing it.

Team Fortress 2