: Most major modern mods, such as the Network Addon Mod (NAM) , require your game to be at least version 1.1.638 (the EP1 Update), but 1.1.640 is strongly recommended for full visual compatibility.
Even with the v11640 patch, you might encounter hiccups. Here is the troubleshooting checklist. simcity 4 deluxe edition v11640 patch link
While I understand you are looking for information regarding the , I want to make sure I’m providing the exact help you need. : Most major modern mods, such as the