F-Stop

Release dates

No release date on record yet.

✓ Official stated by the publisher, platform holder or store page. ~ Reported stated in outlet coverage; not confirmed by the publisher.

Our coverage

1. Nov 2, 2026 · Leak

   Valve's canceled Portal prequel F-Stop has leaked in playable form

   Leakers stitched together a nearly complete build of the long-mythical camera-powered Portal prequel, and full playthroughs are already showing up on YouTube.

   Reported

Latest coverage elsewhere

Headlines from other outlets and official channels. Links open the original source.

• ExternalRock Paper Shotgun · Nov 1, 2026

  What remains of canned Portal prequel white whale F-Stop is now fully playable thanks to modders and some big leaks (external link to Rock Paper Shotgun) ↗

• ExternalSteam News · Nov 1, 2026

  Valve's long-lost prototype Portal prequel appears online after nearly 20 years (external link to Steam News) ↗

• ExternalPC Gamer · Nov 1, 2026

  Valve's long-lost prototype Portal prequel appears online after nearly 20 years (external link to PC Gamer) ↗

• ExternalThe Verge — Games · Nov 1, 2026

  A fully playable version of Portal prequel F-Stop leaked (external link to The Verge — Games) ↗