http://www.steampowered.com/goldrush/
FREE WEEKEND!
The new Gold Rush map is out, introducing the Payload game mode, as well a bunch of new Medic achievements and unlockable weapons.
I'm sure the map rocks (only just got home now), and the regular maps really do rock, like Dustbowl, Gravelpit, etc...it's an awesome game and you cannot argue with an ENTIRE WEEKEND to play the game as much as you want.
FREE!
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )