The original "vanilla" SimCity 4 (2003) carried version numbers in the 1.0.xxx range. The Expansion: The Rush Hour expansion (or the Deluxe Edition bundle) upgraded the game engine to version 1.1.610 .
The most essential mod in SimCity 4 history, NAM , requires at least version 1.1.638/1.1.641. It fixes the game's broken pathfinding engine, and attempting to run it on older versions can cause frequent crashes or "Desktop-to-Desktop" (CTD) errors. simcity 4 1.1.641
So, what did patch 1.1.641 bring to the table? Here are some of the key changes: The original "vanilla" SimCity 4 (2003) carried version
Once you have version , you have unlocked the ability to run the "Holy Trinity" of modern SimCity 4. simcity 4 1.1.641