Link: https://arstechnica.com/gaming/2026/08/a-12tb-steam-teraleak-spills-more-than-a-decade-of-lost-pc-gaming-history/

What’s being sold as an “as-complete-as-possible … content server dump” of Steam’s defunct “Steam2” server architecture from that time period is now circulating around via a BitTorrent tracker that Valve seems unlikely to ever completely purge from the Internet. The massive collection includes thousands of “depots” representing what seems to be every version of every game uploaded to those old Steam2 servers. That includes public release builds, of course, but in many cases also covers previously unseen pre-release, prototype, and playtest versions of popular titles published by Valve and third-party Steam publishers.

Holy shit, sounds like a real jackpot of a leak

12TB is surprisingly small, even if it only is up to 2013. Wonder if it's compressed?

The torrent seems to be a lot of .blob and .dat files, possible to torrent individually, as best I can tell that means it's only as compressed as it originally was on Steam