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October 26, 2026

Steam leak reveals 12TB of Half-Life 2 game assets

Massive 12TB Data Breach Reveals Obscure Gaming Assets

A colossal leak of over 12 terabytes of data, encompassing virtually every game build uploaded to Steam between 2003 and 2013, has surfaced. The detailed contents of this vast archive are still emerging due to its tremendous size. However, among the revelations are assets linked to the unpublished Half-Life 2: Episode 3, excised content from Portal 2, and an unusual title called F-Stop, which is connected to the Portal universe with a focus on camera mechanics.

Unveiling Hidden Gaming Gems

The breach also encompasses materials from games produced by third-party developers. Early game builds unearthed include those from the Call of Duty and Resident Evil series, alongside versions of Mirror’s Edge, Batman: Arkham Asylum, and Dragon Age: Origins. Amidst these discoveries, some of the most intriguing findings pertain to Valve’s Portal 2. Enthusiasts have uncovered unused dialogue, reimagined introductions, and alternate GlaDOS sequences, offering a novel perspective on the story. Additionally, a version of the Weaponizer intended for Half-Life 2: Episode 3 was among the leaked content.

Reporting based on coverage first published by theverge.com.