Updated

A nearly complete playable version of the canceled Portal prequel F-Stop has been pieced together by leakers, according to The Verge. Most of its assets came from a 12-terabyte leak in August, while the missing source code and map data reportedly surfaced this week in the Valve Cut Content Discord. Some dialog and elements of F-Stop later made their way into Portal 2, but The Verge reported that the leaked version differs dramatically from the mainline Portal games.