Rules.ini

Rules.ini is a configuration file that included unit stats starting from Red Alert. It allows easy modifications because it was not hard-coded as in Tiberian Dawn. Some special programs like TibEd or Red Alchemist are specialised in modifying these values in an annotated manner with selection boxes showing the allowed values to aid new modders.

Expansion packs used differently named files that served the same purpose, e.g. aftrmath.ini, firestrm.ini or rulesmd.ini.

As of Generals, a unique Rules file is no longer used. Instead, it is split into several parts.

Use
Rules.ini manipulates unit stats, weapons, armour, mobility and similar attributes. However, unit appearances are saved in Art.ini.

Annotated Rules.ini files

 * Tiberian Dawn ini rules, converted from the hardcoded exe data by Nyerguds
 * Red Alert 2 INI files @ YR Arg
 * Yuri's Revenge INI files @ YR Argentina