I found it on Louise Gouët's instagram and loved her work and the idea so much it became a little present I give myself. Giving yourself little presents is one of the things that I recently added to my repertoire of survival skills and now I recommend it to everyone. Especially now. But that is a reason for a whole separate post.
About this game: I go to the mapcrunch website which gives me a random street view from Google maps. And then draw stuff that I see! Granted some adjustments are needed often - but it's a great start! And if I wanted an urban scene - I just go to google maps and do a street view of a city I want to visit one day. These are mostly super-quick 2x4 inches sketches on whatever paper I have in my pockets (which is a story for another post!)
Try it out and send me a link / tag me on Instagram to see!