Alien Swarm - Valve
Alien Swarm is now available via Steam.

Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. Along with the game get the complete code base for Alien Swarm that features updates to the Source engine as well as the SDK.

Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community.

Announcement - Valve
The R.U.S.E.™ Free Preview Weekend has been extended! Keep playing now through Wednesday, July 21st at 3PM PST.
Fallout 3 - Valve
You can now enjoy all five of the Fallout 3 Game add-on packs! Create a character of your choosing and descend into an awe-inspiring, post-apocalyptic world where every minute is a fight for survival.

Fallout 3 DLC:
- Operation Anchorage
- The Pitt
- Broken Steel
- Point Lookout
- Mothership Zeta

Jul 16, 2010
Tidalis - Valve
Tidalis from Arcen Games is now available on Steam! Don't miss out on the launch week special 10% discount which is only good through July 23rd.

Tidalis is a block-based puzzle game with casual appeal, hardcore depth, and an addictive new "streams" mechanic. The game is brimming over with riffs and variants on that core mechanic with 20 game modes, dozens of special blocks and items, and 115 levels in the adventure mode alone.

Left 4 Dead 2 - Valve
Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Changes:
  • New mutation: Hard Eight
Alien Swarm - Valve
Two years ago Valve hired the talented team behind the popular top down co-op mod Alien Swarm. Since then they have been busy working on the Left 4 Dead Series, and now Portal 2. However, we never forgot about Alien Swarm and the team has spent a lot of time bringing the game to Source in between their contributions to the other Valve projects.

On Monday, July 19th Alien Swarm is going to be released for free via Steam.

In addition to the game, Valve will also release the complete code base for Alien Swarm. This includes updates to the Source engine SDK and full Steamworks integration. If you’ve ever thought about developing a mod on the Source engine with Steamworks, this release provides more insight and examples for using Steamworks in game production.

Please visit www.alienswarm.com for more information.

Jul 16, 2010
Chaser - Valve
The classic shooter Chaser from JoWood/Dreamcatcher is now available on Steam.

Mars, 2044. The UN establishes MARSCORP (Martian Security and Economics Committee) under the leadership of Samuel Longwood. In the years that follow, the UN gradually loses control of MARSCORP, mainly due to the non-transparent licence policy of its director. Longwood uses his autonomous status to create vassal relations between the corporations and MARSCORP. The unshakable power position of MARSCORP is supported by the companies and thus they acquire additional rights and licenses. Longwood and his consortium become extremely wealthy from this arrangement. However, dissenting voices in MARSCORP begin to challenge Samuel Longwood's authoritarian policy. They demand his dismissal as director and a complete redistribution of the mining rights.

Counter-Strike: Source - Valve
Updates to Counter-Strike: Source, Team Fortress 2 and Day of Defeat: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Engine
  • Tuned thread initialization to improve performance on CPUs with more than four cores

Counter-Strike: Source
  • Fixed leftover shadows when ragdoll physics are disabled
  • Added stats gathering to track client and server performance
  • Added instrumentation to help debug network issues
  • Disabled some unsupported threading convars
Booster Trooper - Valve
Updates to Booster Trooper have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Booster Trooper
  • Added: new map - Underground Base
  • Improved: Automatic map switching for dedicated servers
  • Fixed: Unknown player names
  • Improved: Controller usage in Menu
Jul 15, 2010
Client Update - Valve
Steam's opt-in hardware survey has been providing valuable data to the gaming industry for several years now, for gamers looking to upgrade their systems, game designers striving to target their customer base, and PC manufacturers anticipating gaming system adoption rates and trends. However so far it's been limited to just hardware components, which everyone knows is just one part of a gaming system.

So in today's Steam Client Beta release we're extending the survey to include installed software - Any programs listed within Windows' Programs and Features control panel (OS X coming soon) are reported alongside the hardware information Steam collects and reports online.

The new software component of our survey helps us understand what else our customers are using their PCs to do, and as a result, what features we can deliver or leverage to make Steam and our games better. PC users, developers and manufacturers will no doubt also find this information useful, so we plan to publish these results and trends over time. The first set of software survey results will be published among Steam stats at the end of the month.

As always, this survey is both optional and anonymous, with none of the collected data being associated with your Steam account. Survey selection is random; you'll know you're part of the Survey because Steam will ask if you want to take part.
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