Team Fortress 2 - 50% off (And Free Weekend)

As mentioned previously, Team Fortress 2 is having a free weekend through Sunday Dec 20th. If you have Steam, click this link (Steam link) to download and play the game all weekend for free. The game is also 50% off through Monday Dec 21st. Buy it and pay ($19.99 $9.99/£13.99 £6.99/19,99€ 9,99€ T1/14,99€ 7,49€ T2).