https://www.live-feeds.com/feed/a-fully-playable-version-of-portal-prequel-f-stop-leakedContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/a-fully-playable-version-of-portal-prequel-f-stop-leakedhttps://www.live-feeds.com/feed/a-fully-playable-version-of-portal-prequel-f-stop-leaked#u175015Wed, 04 Nov 2026 19:52:47 +0000A playable version of F-Stop, a cancelled Portal prequel from Valve, is now available after fans combined three separate leaks. The game, which originally dates back to 2007, features camera-based mechanics. While one source claims the leak is 99% complete, other reports describe the current build as a rough version. This release ends the status of the title as lost media nearly 20 years after Valve scrapped the project.Why it mattersF-Stop was intended to expand the Portal universe before its cancellation. Its recovery allows players to experience a scrapped piece of Valve's development