Hey there @anonymous_user_972c05d8! Welcome to the community!
So I was originally coming here to to recommend ArcGIS but it seems you’ve already had the idea! Unfortunately there aren’t too many options for extracting and using real life data that are better than ArcGIS. If you only wanted the small sample topology data you could use something like open topology, but you’re trying to simulate a large play space so that’s less applicable.
How large of a playspace are you trying to simulate, and are the buildings relevant or could they be just generated?