A decade's worth of Steam files totaling more than 12TB has leaked

A 12-terabyte leak contains Valve’s internal builds and game assets from 2003-2013, including beta and finished versions of Half-Life, Left 4 Dead, Portal, CS:GO, F-Stop, and early Portal 2. The data also shows unreleased titles such as F-Stop, a camera-based game, and references to the canceled Half-Life 2: Episode 3. Valve has not responded to the leak.