gameplay modes, and are often associated with marketing materials such as comics or videos offered on the Team Fortress 2 website; this blog is also used to keep players up to date with the ongoing developments in Team Fortress 2. As of July 2012, each class has been given a dedicated patch that provides new weapons, items, and other gameplay changes; these class patches typically included the release of the class's "Meet the Team" video. Other major patches have included new gameplay modes including the Payload, Payload Race, Training, Highlander, Medieval, and Mann vs. Machine modes. Themed patches have also been released, such as a yearly Halloween-themed event called "Scream Fortress", where players may obtain unique items available only during a set period around the holiday. Other new features have given players the ability to craft items within the game from other items, trade items with other players, purchase in-game items through funds in Steam, and save and edit replay videos that can be posted to YouTube. Valve has released tools to allow users to create maps, weapons, and cosmetic items through a contribution site; the most popular are added as official content for the game. This approach has subsequently created the basis for the Steam Workshop functionality of the software client. In one case, more than fifty users from the content-creation community worked with Valve to release an official content update in May 2013, with all of the content generated by these players. Valve reported that as of June 2013, over $10 million has been paid back to over 400 community members that have helped to contribute content to the game, including a total of $250,000 for the participants in the May 2013 patch. To help promote community-made features, Valve has released limited-time events, such as the "Gun Mettle" or "Invasion" events in the second half of 2015, also including the "Tough Break" update in December 2015, in which players can spend a small amount of money which is paid back to the community developers for the ability to gain unique items offered while playing on community-made maps during the event. Development of the new content had been confirmed (but later quietly cancelled) for the Xbox 360, while development for the PlayStation 3 was deemed "uncertain" by Valve. However, the PlayStation 3 version of Team Fortress 2 received an update that repaired some of the issues found within the