A 12TB Steam “teraleak” spills more than a decade of lost PC gaming history

Ars Technica reports that a 12TB Steam “teraleak” has exposed a huge slice of PC gaming history, including depots from Valve’s old Steam2 era. The dump appears to cover nearly every title on Steam from 2003 to 2013, with public builds plus pre-release, prototype, and playtest versions. For developers, it’s a rare look at how games and distribution pipelines evolved before SteamPipe.