That would be one huuuuuuuge game then.

How about some Meteora, in the future, with a thriving city under the rocks because of a new power resource found deep in the rocks themselves? You could use the resource itself as a gameplay mechanic to power up machines, suits and the environment and stuff. Also, flying between the rocks. Oh, and cave exploration.

And it turns out it really is a source from an underground meteor/spaceship microcolony of symbiotic aliens that slowly take over your mind as you use the power more and more, thus laying the foundations for a sequel where you become the main villain against the world, HA!

Pyongyang.

Hanoi could be interesting, and of course it'd always be nice to see how my own home town of Norrköping would be interpreted. Fat chance of the latter though.

I'm pretty sure that this is going to feature in the next Assassin's Creed game.

Stoke.

Ideal for post apocalyptic stuff. Or you could base a survival horror in Blackpool.

Thorshavn could be nice to see. Actually it shouldn't be impossible to make a game where you drive around all of the Faroe islands and figure out stuff and kill whales.

Some big african city like Addis Ababa or Cairo could also be great.

I am not fussed on the exact city (but biased towards Perth) but I would love to see some set in Aussie cities for a change! GTA V - Theft Downunder... fanging around the roads in V8 Commodores would be awesome :)

Lived in Scotland for a while, and visited often. Only been to Dundee twice, but I did get to see that statue!

Great idea! Faroe Islands are the perfect size for a free-roaming game.

The one I built in Simcity