Yes, I've used this in the past, though it can take a while for maps to be generated from their website, and the API is rate-limited. It's quite impressive overall, though it could use some help, especially as buildings are quite bland.
Screens from the world I generated for Minetest in January 2021 around Lyon, France: https://imgur.com/a/N2gVIeU
It takes a really long time to cross the generated city, even when boosting the in-game speed. That goes to show how much more smaller videogame worlds really are in general, especially when those are walkable.
I like the fact that the tool is open source (https://github.com/ignfab-minalac/minalac as pointed by others) and uses OSM.
Screens from the world I generated for Minetest in January 2021 around Lyon, France: https://imgur.com/a/N2gVIeU
It takes a really long time to cross the generated city, even when boosting the in-game speed. That goes to show how much more smaller videogame worlds really are in general, especially when those are walkable.