Simcity 4 1.1.641 ((full)) Jun 2026

Essential purchase. Install the game, patch to 1.1.641, and immediately download the Network Addon Mod (NAM) for the definitive experience.

This build includes the BAT (Building Architect Tool) update which allows custom buildings to light up at night. How to Check Your Version To see if you are running 1.1.641: Navigate to your SimCity 4 installation folder. Find the Apps subfolder. Right-click on SimCity 4.exe . Select Properties > Details . Look at the Product Version or File Version field. simcity 4 1.1.641

: This is mandatory. SimCity 4 will crash on multi-core systems without this. Essential purchase

Double-check your version number—it might just be the missing piece of your urban planning puzzle. Essential purchase. Install the game