: If you purchased the game on Steam or GOG , your version is likely already v1.1.641, which includes all the fixes of 1.1.640 and does not require manual patching.
: This patch is essential for you. The disc version ships as version 1.1.610.0 and requires manual patching to reach 1.1.640.0 for full mod compatibility. simcity 4 deluxe edition v11640 patch link
The SimCity 4 Deluxe Edition v1.16.40 patch can be downloaded from the following link: : If you purchased the game on Steam