A fully playable version of Portal prequel F-Stop leaked

<figure> <img alt="The Valve logo on a graphic red and white background." data-caption="" data-portal-copyright="Image: The Verge" data-has-syndication-rights="1" src="https://platform.theverge.com/wp-content/uploads/sites/2/2025/11/STKB376_VALVE_D.jpg?quality=90&#038;strip=all&#038;crop=0,0,100,100" /> <figcaption> </figcaption> </figure> <p class="wp-block-paragraph">Leakers have pieced together a playable version of the <a href="https://kotaku.com/valves-cancelled-portal-prequel-f-stop-has-leaked-2000752082">canceled <em>Portal</em> prequel <em>F-Stop</em></a>. Most of the assets came from the massive <a href="https://www.theverge.com/games/986552/12tb-steam-leak-half-life-2-episode-3">12-terabyte leak</a> that dropped this August. That didn't include the game's source code or map data, but those final pieces apparently hit the Valve Cut Content Discord this week, allowing a nearly complete version to be pieced together. </p> <p class="wp-block-paragraph">Some dialog and elements of <em>F-Stop</em> eventually found their way into <em>Portal 2</em>. But it differs dramatically from the mainline <em>Portal</em> games in that it's built around a camera mechanic that lets you capture an item by taking its picture and place it elsewhere using the resulting Polaroid …</p> <p><a href="https://www.theverge.com/games/1024206/playable-portal-prequel-f-stop-leak">Read the full story at The Verge.</a></p>