Each serial number is typically bound to a single computer. Publicly shared keys are often blacklisted and will not work.

Alternatively, you can purchase the simulator on Steam , which uses the Steam licensing system rather than a manual serial number.

For those looking for a , it is essential to understand that this software uses a unique license-based protection system. A valid serial number is required to unlock the full features of the simulator, which is widely used for mastering driving skills in a realistic urban environment. How to Get a Valid Serial Number

You can buy a unique serial number directly from the official City Car Driving website for approximately $24.99 .

Official technical support from support@citycardriving.com is only available to registered users with a valid order ID. Features of the 1.5 Home Edition

If you purchased an older standalone version, the developers offer a service to exchange your serial number for a Steam key . Note that once exchanged, your original serial number will be permanently deactivated. Why You Should Avoid "Free" Serial Numbers Online