A gigantic 12-terabyte archive from Valve's old Steam2 content servers has leaked online, containing internal development builds spanning from 2003 to 2013. The trove includes a July 2009 build of Portal 2 with unused sequences and beta menus, along with assets from F-Stop, the canceled Portal prequel. There's also a playable 2008 build of Left 4 Dead and early Counter-Strike: Global Offensive content.

The most talked-about find is a "Weaponizer" model appearing in the Portal 2 files, long rumored to be a concept weapon from the canceled Half-Life 2: Episode Three. The model has surfaced before, but never inside an actual game build, so its presence here is of some significance. However, it may simply have been repurposed as an unrelated placeholder asset.

On August 24, 1996, Gabe Newell and Mike Harrington officially founded Valve, forever changing the world of PC gaming. The company made a massive debut in 1998 with Half-Life, stepping into the realm of legendary PC game franchises. Later on, Valve started creating a variety of games like Dota, Counter-Strike, Artifact, Team Fortress, Left 4 Dead, Portal, and many more, all of which became staple releases and gained a worldwide following.

In 2003, the company officially entered the game distribution arena by launching Steam, now regarded as the leading PC gaming client software and the top destination for games, deals, promotions, and launches. With hundreds of millions of players across the globe, the Steam platform has become the largest PC gaming community on the planet. At its peak, Steam has achieved more than 40 million concurrent gamers online, meaning that at one point, 40 million enthusiasts were playing their favorite games, all purchased, downloaded, and managed through Steam.

On behalf of Sony Interactive Entertainment (SIE) and Bad Robot Games (BRG), it is our pleasure to announce 4:Loop, a 4-player co-op shooter experience set in an original sci-fi universe. Our teams are thrilled to finally show you what we've been working on, and now you can catch a first glimpse of gameplay by watching the official gameplay reveal trailer that debuted at the 2025 TGAs. Check out the trailer below.

Don't forget to wishlist on PlayStation Store and Steam to keep up with all the latest 4:Loop secrets coming soon. Created by Mike Booth and the interactive storytellers at Bad Robot Games, 4:LOOP is a tactical, four-player co-op shooter crafted for endless replayability and infinite ways to build the ultimate team. Together, if you can learn from your mistakes, you might just fail to save the world.

Twisted Works, a relatively young UK-based game development studio, has revealed its main project: Cast Out. Last week's announcement arrived as an IGN exclusive, but other news outlets have picked up on familiar clues—harking back to an unnamed and cancelled Sony PlayStation IP. Almost two months into 2024, several first-party UK outfits faced closure, or severe reductions of headcounts. At the time, Sony Interactive Entertainment's restructuring plan resulted in the shuttering of its long-serving London studio. Under two years later, elements of the UK capital city-based team's former "PS5 online game" seem to live on in Cast Out.

Eurogamer pointed out visual similarities between old and new: "it seems that some of the developers' previous work had more than just a small influence on the upcoming release...which bears a striking resemblance to (concept) artwork for London Studio's own cancelled online game, that was to be set in a fantasy version of (London)." Twisted Works formed last summer, established by ex-SIE UK veterans. Their main website lists additional talent being sourced from other well-known entities: Guerrilla Cambridge, Blur Studio, Square Enix (London), Disney Interactive (Brighton), and Creative Assembly (Horsham). Unsurprisingly, Cast Out is lined up for release on PlayStation 5 and PC (via Steam). An early access beta version could be on track for an early 2027 roll out.

In case you didn't know, Valve Studio Orchestra is the group behind the iconic soundtracks of many Valve games including DOTA 2 and Team Fortress 2. This week, the soundtracks for both DOTA 2 and Team Fortress 2 became available to stream on Spotify, Valve Studio Orchestra has also hinted the Left 4 Dead soundtrack may soon be joining them.

The soundtrack for Valve's Portal series already exist on Spotify, as do tracks from Valve's Half-Life series. You can find the Valve Studio Orchestra Spotify page here.

When Steam hit critical mass in the mid 2000s, digital distribution of games was close to non-existent, Internet speeds were too low to transmit 8-10 GB games that would ship in DVDs, and game patching was a mess. Steam solved many of these problems by offering distribution, DRM, aftersales support (automatic updates), and even multiplayer services across its network. Steam didn't become popular on its own, though. Valve Software was mainly a game developer, and it marketed Steam by making its AAA smash-hits "Half Life 2" (and its episodes), "Counter Strike," and "Left 4 Dead," exclusive to the DRM platform. Even if you bought those games on DVDs, they would have to be installed and supported through a Steam account. Those games served as tech-demonstrators for Steam, and how efficient an all-encompassing DRM platform can work.

Steam maintained its dominance for a good 8-odd years until big game publishers such as EA and Ubisoft wised up to the concept of multi-brand distribution platforms Steam mastered. Steam operates on a revenue-sharing model. For every Dollar spent on a game, a percentage of the money is retained by Steam toward its services. EA and Ubisoft figured it wasn't rocket-science to copy Steam, and came up with their own platforms, EA Origin, and Ubisoft UPlay, both of which are multi-brand. They figured their capital-expenditure toward running these platforms was less than what they'd pay Steam at scale. EA restricted all its titles to Origin, while Ubisoft made some of its games available on Steam, even though UPlay would remain a concentric DRM layer to those games. Then something changed in 2018.

Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced the second set of titles proceeding to worldwide distribution opportunities through Steam Greenlight. This second wave of titles was originally targeted to include at least 10 titles. Given the number and quality of games submitted, and the ship date of many of the top-ranking titles, the decision was made to increase the size of this group.

Steam Greenlight is a new platform feature that enlists the community's help in selecting some of the next games to be released on Steam. Launched on August 30, Greenlight allows developers and publishers to post information and media about their game in an effort to convince Community members that their game should be released on Steam.

Valve, creator of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced the open beta release of Source Filmmaker (SFM), for free, to everyone.

The SFM is a storytelling tool Valve developed inside the Source Engine to create all its animated short films, including those in the "Meet the Team" series of Team Fortress 2 shorts. The SFM condenses the production pipeline of an animation studio down onto a single gaming PC. To help the community get started, the SFM includes all assets from Team Fortress 2 along with assets from two of the "Meet the Team" short films.

Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced Steam Greenlight, a new platform feature that enlists the community's help in selecting some of the next games to be released on Steam.

Steam Greenlight will allow developers and publishers to post information and media about their game in an effort to convince the Community that their game should be released on Steam. Greenlight piggybacks on Steam Workshop's flexible system that organizes content and lets customers rate and leave feedback.

Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced the beta release of the Steam application for iOS and Android devices.

With the Steam app, gamers around the world may chat with Steam friends, browse community groups and user profiles, view screenshots and user-generated content for their favorite games, read the latest gaming news, stay up to date on unbeatable Steam sales, and more.

Very quietly Microsoft has released two new patches available for the Bulldozer platform. According to the AMD blog these patches seem to offer little more then a 10% boost but the do improve over all performance. This is what Adam Kozak a product marketing manager at AMD had to say,

"Some of you may remember that AMD FX processors use a unique dual-core module architecture codenamed "Bulldozer", which current versions of Windows 7 were not specifically architected to utilize. In essence, for those with an AMD FX-8150 Processor, for example, Windows 7 sees the eight available cores and randomly assigns threads to them.

In initial testing of the upcoming Windows 8 operating system, we've seen performance improvements of up to 10% in some applications, when compared to Windows 7. This is because the system correctly recognizes the AMD FX processor architecture and cores. Thanks to close collaboration between Microsoft and AMD, Microsoft recently completed back-porting some of the Windows 8 scheduler code for AMD FX processors into a hotfix for Windows 7."

SteelSeries, the leading global manufacturer of gaming peripherals, today introduced the first in a series of co-licensed products with Valve Corporation, creator of best-selling game franchises (such as Half-Life, Portal, Left 4 Dead, and Counter-Strike) and leading technologies (such as Steam and Source). The SteelSeries QcK+ DotA 2 Edition provides players with a smooth and consistent glide surface and a non-slip rubber base that keeps the mousepad in place regardless of the gaming environment. Optimized to achieve precision and accuracy for optical and laser technology, the oversized mousepad is 17.7 x 15.7 x 0.08 inches and features the vibrant colors of the Dota 2 black and red game logo.

SteelSeries, the leading global manufacturer of gaming peripherals, today announced a new partnership with Valve Corporation, entertainment software and technology company and creator of the popular Steam platform and award-winning properties such as Half-Life, Counter-Strike, Team Fortress, Portal and Left 4 Dead. Through a multi-title agreement, SteelSeries will work closely with Valve to design co-branded gaming surfaces, specific for Valve's most recognized game titles.

Valve announced today it will bring Steam, Valve's gaming service, and Source, Valve's gaming engine, to the Mac. Steam and Valve's library of games including Left 4 Dead 2, Team Fortress 2, Counter-Strike, Portal, and the Half-Life series will be available in April. "As we transition from entertainment as a product to entertainment as a service, customers and developers need open, high-quality Internet clients," said Gabe Newell, President of Valve. "The Mac is a great platform for entertainment services."

"Our Steam partners, who are delivering over a thousand games to 25 million Steam clients, are very excited about adding support for the Mac," said Jason Holtman, Director of Business Development at Valve. "Steamworks for the Mac supports all of the Steamworks APIs, and we have added a new feature, called Steam Play, which allows customers who purchase the product for the Mac or Windows to play on the other platform free of charge. For example, Steam Play, in combination with the Steam Cloud, allows a gamer playing on their work PC to go home and pick up playing the same game at the same point on their home Mac. We expect most developers and publishers to take advantage of Steam Play."

AMD today released the ATI Catalyst 10.1 driver suite, this year's first. The suite provides drivers and system software for ATI Radeon products (including Radeon HD 5900, 5800, 5700, 5600, HD 4000 series), AMD 7-series chipsets, All-in-Wonder, and Theater multimedia products. The new set of drives brings in application-specific performance improvements, OS and application bug-fixes, and new features. Notable ones are listed below:

• Left 4 Dead 2 - Overall performance improves as much as 3% on ATI Radeon HD 5700 series products and ATI Radeon HD 5800 series products
• Crysis - Performance improves as much as 3% on ATI Radeon HD 5700 series products and as much as 4% on ATI Radeon HD 5800 series products

DOWNLOAD: ATI Catalyst 10.1 WHQL for Windows 7/Vista 32-bit | Windows 7/Vista 64-bit | Windows XP 32-bit | Windows XP 64-bit

For a complete list of changes specific to your OS, refer to the Release Notes document.

Valve, creators of best-selling game franchises (such as Half-Life, Portal, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced that Crash Course -- the second downloadable content (DLC) update for its zombie thriller, Left 4 Dead (L4D) -- is available now for Xbox 360 and PC. To celebrate, Left 4 Dead (PC) is available via Steam for 50% off its regular its regular price thru Oct 1.

Entitled "Crash Course," the latest DLC delivers new single-player, multiplayer and co-operative gameplay to both platforms. Targeted for release in September, "Crash Course" bridges the gap between the end of the "No Mercy" campaign and the beginning of "Death Toll" in the original game, expanding the game universe with new locations, new dialogue from the original cast, and an explosive finale.

Valve, creators of best-selling game franchises (such as Half-Life, Portal, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced the next major downloadable content (DLC) update for its co-operative zombie thriller, Left 4 Dead (L4D), the #1 new game title on Xbox 360 and PC in 2008.

Entitled "Crash Course," the latest DLC delivers new single-player, multiplayer and co-operative gameplay to both platforms. Targeted for release in September, "Crash Course" bridges the gap between the end of the "No Mercy" campaign and the beginning of "Death Toll" in the original game, expanding the game universe with new locations, new dialogue from the original cast, and an explosive finale.

Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today announced Left 4 Dead 2 (L4D2), the sequel to the best-selling and critically-acclaimed co-operative multiplayer thriller.

Coming exclusively to Xbox 360 and PC, L4D2 promises to set a new benchmark for co-operative action games and become one of 2009's marquee titles.

"A large part of how Left 4 Dead became 2008's top-selling new IP on Xbox 360 and the PC was the custom-tailored gameplay made possible by the AI Director," said Gabe Newell, president and co-founder of Valve. "With the knowledge gained from creating the original, new technology, and a passionate team, L4D2 will set a new benchmark for cooperative action games."

Set for release on November 17, the title adds melee combat to enable deeper co-operative gameplay, with items such as a chainsaw, frying pan, axe, baseball bat, and more.

The free 24-hour trial of Left 4 Dead (PC) is being extended through the night. The free trial includes access to the recently released Survival Pack DLC, which introduced a new multiplayer game mode and two additional Versus campaigns. Those who wish to give L4D and the Survival Pack a free try now have until Saturday at 5 pm GMT, with no obligation to purchase. Those who decide to purchase the full product and do so this weekend will save 40% off the regular price. For more information, please visit Steam Games

Beginning Friday at 12:01 am GMT, the PC version of Left 4 Dead will be available for a free 24-hour trial via Steam. The free trial will include access to the recently released Survival Pack DLC, which introduces a new multiplayer game mode and two additional Versus campaigns. Those who wish to give L4D and the Survival Pack a try may now pre-load everything needed to play with no obligation to purchase. For more information, please visit Steam Games.

The Left 4 Dead Survival Pack is now available for the PC and Xbox 360, free of charge to all owners of the game. The full change list for the PC release is below. In addition, both the retail and Steam versions of the game (PC and 360) are now available for a special price. Check Steam and local retailers for pricing details. For more information about L4D, please visit l4d.com.

A free update for the Xbox 360 version of Left 4 Dead is available now via Xbox Live. The update includes a host of fixes, tweaks and new features, including enhancements to Versus mode for improved competitive play. The full change list is:

General

• Fixed Survivors being able to climb surfaces marked for versus infected only
• Fixed a class of SurvivorBot bugs dealing with rescuing downed players
• Players can no longer grab ladders while flying through the air after a Tank punch
• Shooting near a car with an alarm that has already fired the alarm will no longer make chirping noises
• Fixed mini-gun physics exploit
• Fixed propane tanks (and other physics objects) causing players to fall through elevators
• Fixed rare achievement bug issues
• Fixed several map exploits

The recently announced Left 4 Dead Downloadable Content (L4D DLC) will be delivered to Xbox 360 and PC gamers free of charge. Due for release this spring, the DLC for 2008's best-selling new game property on the PC and Xbox 360, is dubbed the L4D Survival Pack and introduces a new multiplayer game mode entitled, Survival, plus two complete campaigns for Versus Mode (Death Toll, Dead Air). A Critic's Choice Edition of the game will be heading to retail stores this spring, and will include access to all the content introduced in the L4D: Survival Pack.

Left 4 Dead is a survival action game from Valve that blends the social entertainment experience of multiplayer games such as Counter-Strike and Team Fortress with the dramatic, narrative experience made popular in single player action game classics such as the Half-Life series of games. Released in November of 2008, L4D has earned over 25 industry awards from outlets around the world.

For more information, please visit www.l4d.com.

Valve, creators of best-selling game franchises (such as Half-Life, Portal, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced a series of content and development releases for its latest title, 2008's best-selling new game property for the PC and Xbox 360, Left 4 Dead (L4D).
The first L4D DLC - dubbed the L4D Survival Pack - is due for release this spring and introduces a new multiplayer game mode entitled, Survival, plus two complete campaigns for Versus Mode . A Critic's Choice Edition of the game is also heading to retail stores this spring, and will include access to all the content introduced in the L4D: Survival Pack.
In addition, for PC gamers and aspiring developers, the first Left 4 Dead release for the Source Software Development Kit (Source SDK) will allow the creation of custom Left 4 Dead campaigns that will be discoverable via L4D's matchmaking system. The SDK update is also due for release this spring, and is free of charge to all owners of L4D on the PC.

The PC version of Left 4 Dead, Valve's zombie thriller, has been officially announced. The game is now available via Steam to gamers around the globe, to purchase, download and play. The hard-copy title will be available for the PC and Xbox 360 platforms at retail stores on Tuesday, November 18 in North America and worldwide on Friday, November 21. For more information, please visit Steam Games.