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A first-person view of an F-Stop test chamber, showing a mannequin with one arm raised and the handheld Aperture Science camera resting on a pedestal in a white tiled room.

Nov 2, 2026

Valve's Cancelled Portal Prequel F-Stop Surfaces as a Playable Build

Leakers and the Valve Cut Content community built an unofficial playable version of F-Stop, Valve's cancelled 2007 Portal prequel, from three separate leaks.

By TPW Editorial8 min read