Valve has announced that it will be giving players a chance to try out "Day of Defeat: Source" for free starting Friday and lasting through the weekend.
"Visit
Steampowered.com to pre-load the game and be set to play at 12:00 pm PST on Friday, when the Free Weekend begins. Join the ranks as Axis or Allies troops located in Western Europe during the height of the war in 1944."
