12TB Valve leak reveals early CS:GO builds
A massive data leak from Valve has exposed hundreds of prototype builds and early development files for Counter-Strike: Global Offensive, offering a rare glimpse into the game's earliest stages. The incident, which occurred over the weekend, includes assets dating back to 2003 and spans multiple titles from various publishers.
The leak was shared by user Gabe Follower, who stated that the data exposure did not result from a hack. Among the recovered files are some of the earliest known screenshots of CS:GO, which Gabe Follower described as a modified version of Counter-Strike: Source. These images highlight how significantly the visual design and interface of the FPS evolved before its official release.
Another notable discovery came from SlippiSRC, who posted a screenshot of a menu interface that resembled the main screen of the Halo series. This build included support for play on XBOX consoles. While Valve did eventually release CS:GO on console, support for that version was discontinued almost immediately after launch.
SlippiSRC also shared additional screenshots revealing unreleased maps intended for the Arms Race and Demolition game modes. Gabe Follower followed up with a detailed video on his YouTube channel, showcasing gameplay from these legacy builds. The footage features unreleased character models, maps, and a game mode that closely resembles the Payload mode from Team Fortress. The creator noted that he plans to dedicate a separate video specifically to the CS:GO segment of the leak, which begins at the 6:15 mark in his current upload.