I finally played Duke Nukem Forever's unfinished 2001 build, and while it probably would have been better than Gearbox's fiasco, it still wouldn't hold up today

It's one of the great 'What ifs' of PC gaming. What if Duke Nukem Forever had not stumbled onto Steam in 2011 looking tired and confused in a washed-out Doom 3 engine, but had released as depicted in its legendary E3 2001 trailer, where it looked set to steal Half-Life 2's thunder with its cinematic storytelling, imaginative set-pieces, and preposterous levels of interactivity.

Like a lot of middle-aged PC gamers, I've often wondered what this version of Duke Nukem Forever might be like to play.