The best alternatives to StreetMix are Banished, Giraffe, and Cities: Skylines. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of StreetMix?
Hurree— The smarter, simpler way to analyze your data
A tool to help urban designers work faster, communicate better and have fun while they do it. Enables the designer to focus on the design, not the admin.