Steam2 - GoKawiil

12TB Steam2 server dump exposes unreleased Valve and third-party game data

A 12-terabyte archive of data from Valve's old Steam2 content servers, used between 2003 and 2013, has surfaced via BitTorrent in an incident dubbed the 'Teraleak.' The trove reportedly contains unreleased builds and prototypes from Valve and other developers, including early Portal 2 prototypes and a Sonic the Hedgehog 4 build, and appears to have been assembled from publicly accessible endpoints rather than a hack.

techspot.com · 2026-08-31

12TB leak exposes decade of pre-2013 Steam build history

A massive 12TB torrent dubbed the Steam 'teraleak' has surfaced online, containing thousands of game depots from Valve's old Steam2 content distribution system used between 2003 and 2013. The trove includes public release builds as well as previously unseen prototype, pre-release, and playtest versions of games from Valve and third-party publishers. Data miner Gabe Follower says the material was pulled from a publicly accessible API endpoint, suggesting the exposure originated from Valve's own systems rather than a hack.

arstechnica.com · 2026-08-30