Steam's weekend special for this week is The Orange Box, the highly-acclaimed collection of PC titles from Valve. The sugar to sweeten the deal? They're slashing off 66% from its regular price.

We all know that Valve's Half-Life 2: Episode 2 kicked some serious booty last year, and it's still among today's favorites because of its superior gameplay. The only downside in this scenario is that fans are asking for more, and they've started looking at E3 2008 as the possible birthplace of the next episode. Valve says "not yet", but they've got another thing for itchy trigger fingers. More after the jump.

Good news, Team Fortress 2 (PC, PS3, Xbox 360) fans - the highly-anticipated Goldrush update for the multiplayer fragfest is now here, and will be downloaded automatically as soon as you restart your Steam client. From new weapons to a new map, to improvements and bugfixes all around, this is one update you should not miss. Check out all the details, including the very long changelog, after the jump.

Yes, Valve Corporation's Portal (Microsoft Xbox 360, Sony PlayStation 3, PC) is indeed remarkable, but as tempting as the idea may be, the game developer studio won't cash in on the highly-lucrative series...for now. Valve's Doug Lombardi speaks up about the choice they made concerning Portal, and you can read about it in the full article.

After the slew of mostly PC games last week, this time around we're going to have the same boatload of PC releases with a smattering of Nintendo Wii and DS games, and the occasional XBLA shoot-em-up in between. The gaming line-up is diverse, however. This week we're going to have the old-school vertical shooter Ikaruga, the dungeon crawler Baroque, and the retail stand-alone release of The Orange Box titles. Check out the entire list in the full article

Steam has just released the Source SDK for Half Life 2. This update will automatically take effect once you restart your clients. Included in this update are enhancements and bug fixes.

Also, Steam was able to present some known issues in it. Scoot on over to the full article to read more on this.

Do you play as the binge-drinking, grenade-lobbing, eyepatch-having Demoman in Valve's Team Fortress 2 (PC, Xbox 360, PS3)? Then sit up and take notice, as Valve has just released yet another update to the highly-stylized and highly-awesome multiplayer FPS that is Team Fortress 2. The Demoman has been given quite the fix. Check out the entire changelog in the full article.

If you like plowing through rhythm games, then you may want to check out Dylan Fitterer's Audiosurf, now available through Steam. The GDC 2008 Excellence in Audio award nominee will not only let you play along with the music, but will also let you choose a song from your own collection as well. Details await in the full article.

Heads up, FPS fans! Team Fortress 2 (Xbox 360, PC, PS3), the highly-addictive multiplayer FPS from Valve, is getting its biggest (and most cost-effective) patch for the PC version tomorrow at 11 AM PST. We say cost-effective because it doesn't cost you a single cent to download it, which is all kinds of awesome. Head on over to the full article to check out the changelog.

As the world draws closer to affordable broadband service and does away with easily scratched optical media, online distribution services, such as Valve Software's Steam, continue to reach a wider audience. Valve was able to look back to 2007 and discovered that their user base has just topped off to over 15 million registered accounts. And what's more, their sales growth peaked to approximately 160% year-on-year over the holidays.