For all you Half Life 2/Medal of Honor fans out there, now you can get your WWII game on in Source style. In an effort to further prove that Valve’s Source engine is one of the best, Valve is providing PC gamers with a chance to play Day of Defeat: Source for free all weekend long.

Day of Defeat: Source is set to show off all the nifty tricks Valve can do with thier infamous Source engine and this should prove to be an excellent opportunity for many HL2 fans to try out a new Source based game.

You can preload the game now via Valve’s Steam service (click the Steam logo below), but you won’t actually be able to start playing until noon PST on Friday (Feb 10th). This is just a suggestion, but the best idea would probably be to start the download now to avoid the Steam traffic jam Friday afternoon. You may also want to make sure your calendar is completely empty so as to avoid any aggrivating conflicts that may remove you from your 48 hour gaming binge. Game On!!