Valve Steam Leak Exposes 12TB of Old Game Files, Including Portal 2 Beta and Half-Life 2: Episode 3 Assets

A reported 12TB Steam archive leak has opened a remarkable window into Valve’s development history, with researchers uncovering early builds and unused assets from some of the company’s most important games. The archive reportedly contains material from 2003 through 2013, including development versions of Portal 2, Left 4 Dead and Counter-Strike: Global Offensive, alongside files connected to canceled projects. The discovery is particularly significant for Half-Life fans because investigators have identified a Weaponizer model associated with the canceled Half-Life 2:…