EA really dropped the ball there, completely destroying a classic. No one ever asked for a multiplayer version. And most just want to build a big city, not the tiny shthles it only lets you build now.
On the off chance you (or someone else) didnt come across it: Cities Skylines is worth the price. (though i didnt stick with it through the expansion packs)
Cities: Skylines is an amazing city builder with a massive library of mods. Check out r/CitiesSkylines for screenshots of some of the cities people can build--some of them look like photos of actual cities!
If they would've iterated carefully on the fundamentals and religiously focused on optimizing the code to allow for absolutely enormous sprawling cities, people would've loved it and kept buying new versions.
https://www.paradoxplaza.com/cities-skylines/CSCS00GSK-MASTE...