Update: CD Projekt Red has further discussed the size and structure of Cyberpunk 2077's world.
Recalling what was said ahead of The Witcher 3, level design coordinator Peter Gelenscer says about Cyberpunk 2077's world that "it shouldn’t be big, it should be enough." It's hard to put an exact number on world size because the city is so much more vertical this time around.
"People ask us how big the game world is and it’s a really tricky question. First and foremost it’s very hard to measure because The Witcher was pretty flat, with landscapes and mountains where everything could be observed from the top down.
"Cyberpunk and Night City are very vertical, so there are a lot of opportunities to introduce depth to your exploration. So in terms of size, I’d like to repeat what I said a couple of years ago when we were talking about The Witcher: it shouldn’t be big, it should be enough."
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Gelenscer was speaking with IGN at its E3 live show. It looks like the team is yet to upload the VOD, but when they do, you'll find it on their YouTube channel. Elsewhere in an interview with GameSpot, associate deisgner Kyle Rowley explained that the game would would be split into six unique disctricts within a single mega city.
From the sounds of it, each district will be almost like its own city. There are rich areas, like the Pacifica district, but also ones overrun with gangs. The districts will have their web of quests to explore, stories to discover, and trade networks to exploit.
Within at least some of the districts, too, are what are being called megabuildings. These vast structures are so large that they have their own microenvironments inside. It certainly has me thinking of Mega City One from the Judge Dredd comics.
Rowley emphasised that the team is pushing verticality with Cyberpunk 2077, so expect to find yourself ascending towering structures and taking routes that will play merry hell with your vertigo.
There was a whole spread of locations on show in the Cyberpunk 2077 trailer shown during Microsoft's E3 conference, though it's not clear which is which yet: