Useable Horses and Iron

This mod makes it so that Horses and Iron resources can be assigned to cities and towns as bonus resources. They keep their benefits to all units regardless of whether or where they are assigned to a city, so none of their functionality from the base game is lost or affected. Their benefits are as follows: -Horses: +2 production (becomes +3 production after researching Mastery of The Wheel) -Iron: +2 Science (loses the science benefit and becomes +4 production after you research Iron Working) I'm currently planning on giving these resources uses in the Exploration age as well. Spoiler Iron and Horses :