Types of Custom Content for SimCity 4

SimCity 4 still retains a cult following, and the large part of the reason why is custom content (aka mods). The game was designed from the ground up, to accommodate very significant changes and enhancements, by anyone with the technical knowledge to do it.

There is also a surprisingly wide array of types of custom content, from new buildings, to changes in transportation capabilities, to changes in economic gameplay, to new capabilities in decorating your cities, to regional and city census facilities, to in-game graphs and visualisation tools, to tools for building new custom content.