Team Fortress 2's gotten a whole new, shiny metal faction.
(cue Bender jokes... *here*)
After a staggeringly short ARG, it's been announced that the third faction in teh game's going to be robotic. The new trailer shows off a mess of the shiny, metal villains, and while they're all based on established class art, they certainly look the part.
The Mann vs Machine update comes on the 15th of August (US time), and will also feature a new co-op mode, were you can take on hordes of punier robots, and upgrade your gear between waves.
And there'll probably be hats. Check out the trailer below, and do make sure to read the official and hilarious announcement at Teamfortress.com. There are more announcements slated for the next few days, too.