In 2005 Independent Games Festival finalist Iocaine Studios projectile-based tactical game ThreadSpace: Hyperbol, players battle each other on roads in space, called Hyperchannels, as they pilot Ships capable of firing a wide variety of weapons.

Valve and Penny Arcade have teamed up to bring ruthlessly-topical Webcomic Penny Arcade to Valve's digital content delivery platform Steam. Viewable in all Steam accounts (no purchase required), a brand new installment of Penny Arcade will be posted every other day, providing a thrice-weekly dose of one of today's most popular Webcomics.

Atari hooked up with Valve to stress test the multiplayer portion of Iocaine Studios' "projectile-based tactical game" ThreadSpace: Hyperbol. Players battle each other on roads in space, called Hyperchannels, as they pilot Ships capable of firing a wide variety of weapons.

Vigil: Blood Bitterness, previously known as Victi: Blood Bitterness, is a 3D episodic, black & white, moody adventure game where you play a character trapped on an asteroid, a relic of an ancient civilization. Meridian4 has signed an agreement with Valve to offer Vigil: Blood Bitterness for download on Steam.

Beginning in July, Valve will ship a major update to its online gaming platform Steam, allowing users can set up their own personal Steam pages and profiles, create and join groups, schedule games with friends, review who they've played with, see how well everyone played, chat with groups, chat via voice, and more.

Bizarre Creations and Valve announce the debut of Geometry Wars: Retro Evolved for WinXP on Steam. The game is an old school style shooter remixed for the 21st century with next-gen graphics and deep, modern gameplay that is easy to pick up and hard to put down.

Race: Caterham allows you to drive a total of 60 individual new cars/car skins based on some of the most exciting models of the Caterham sports car range, as well as two new tracks ; the legendary circuit of Imola and the former GP-track of Estoril.

Telltale and Valve today announced that Sam & Max: Season 1, Telltale's flagship episodic series, is now available on Steam for $8.95. Sam & Max: Season 1 is a story-driven game series starring a dog and rabbity-thing detective duo that dishes out their own brand of justice.

Capcom and Valve announced an agreement that brings a collection of Capcom's current and future PC games to Valve's Steam digital distribution service. PC versions of Lost Planet: Extreme Condition, Onimusha 3, DMC 3: Special Edition, Super Puzzle Fighter II Turbo HD Remix, and future PC titles will be made available...

TrackMania United groups all the TrackMania games released until now and all their add-ons. The Stadium environment from TrackMania Nations will benefit from a new version with twice more blocks, while integrating a whole new set of functionalities both for online and solo play. TrackMania United is coming to Steam, now available for pre-order at 20% discount.

Using an enhanced Tomb Raider: Legend game engine, the graphics, technology and physics bring Lara's adventure and pursuit of a mystical artifact known only as the Scion right up to today’s technology standards and will offer gamers a completely new gameplay experience. Valve announced Tomb Raider: Anniversary is now available for pre-order and will be released early June through Steam.

Valve today announced that its digital content delivery system Steam has surpassed 13 million active accounts. With over 150 games in a broad selection of genres and dozens of other PC applications, movies, and demos available, Steam has become a destination for millions of gamers around the world.

Set in a dark and mysterious world, Wik & the Fable of Souls pulls players in with innovative game play. The unique way that Wik interacts with his environment, using his long sticky tongue to swing around levels with grace and speed, creates a visual experience that is as exciting to watch as it is to play.

Valve announced that Sid Meier's Railroads! ($19.95), as well as Railroad Tycoon II and Railroad Tycoon III now available for purchase on Steam, separately or, you can purchase all three titles as a package for $29.95. Golden oldie X-COM: Terror from the Deep is now available for purchase on Steam for $4.95.

Arx Fatalis, Dark Messiah of Might and Magic developer Arkane Studios 2002 medieval fantasy RPG, is now available for purchase on Steam. For a limited time through April 10, Steam customers can purchase Arx Fatalis for $7.95, a 20% discount off the regular price.

Eidos Interactive and Valve announce the availability of an additional seven games via Steam. The latest wave includes games from the Tomb Raider, Deus Ex, and Thief series of games. Plus catch the Eidos Action Gang, a limited-time collection featuring Just Cause, Snowblind, and Rogue Trooper together for just $59.95.

After attending the Game Developers Conference, Valve announced, that next week, it will be announcing an agreement with a major publisher to bring their entire catalog to Steam, "Many of us are away at the Game Developers Conference this week, scouting for new great games to bring to Steam. Speaking of which, stay tuned for an announcement next week about a major new publisher catalog coming your way."

In Dark Messiah of Might and Magic, players will be introduced to the world of Ashan, a dark and unforgiving world, scarred by a bloody history and threatened by an apocalyptic prophecy: the Dark Messiah. A v1.04 multiplayer patch for Dark Messiah is available through Steam, adding 4 new maps, new multiplayer mode, and plenty of tweaks, adjustments, crash and bugs fixes.

BioWare is bringing an enhanced version, high-resolution graphics and new visual effects, of Jade Empire to the PC, now available for pre-order through Valve's digital delivery system Steam for $35.95. The original, story of Jade Empire is injected with new monsters, weapons, combat styles, new challenges, and special items to discover.

Funcom and Valve announce an agreement to deliver 'Dreamfall: The Longest Journey' through Steam. Dreamfall: The Longest Journey is an action-packed thriller set in a large and varied game world mixing gritty reality with imaginative fantasy.

Valve announced that it is overhauling its Steam digital delivery service next week, adding new features such as Guest Passes, Background Client Updating, and a completely updated user interface, and more.

Empire Interactive announce that it has signed a digital distribution agreement with Valve to offer three of its titles, Flat Out II, Vegas Tycoon, and Ghost Master, via Steam.

In remembrance of the infamous Pearl Harbor attack, Valve kicks off a World War II week today on Steam with a Call of Duty bundle, a Red Orchestra Free Weekend (Dec. 7 - 10), and limited-time discounts on the leading WWII action games offered via Steam.

After the demise of the Triton digital distribution system, Take 2/3D Realms announced it would be looking into alternatives, and they seem to has found one. Valve announced today that Prey will be available Thursday, November 30 on Steam for $49.95. Previous purchasers of the retail or downloaded editions of Prey can activate a copy on Steam at no cost by using their existing product key.

Good news for gamers without credit cards: Steam now offers support for PayPal as an alternate payment method. Every title available via Steam, including the recently released Medieval II and Dark Messiah, may be purchased with PayPal or any of the existing payment methods.