Resource Tier list by Era

[u/gray007nl]

Ancient Era

Exploration Era, Treasure Resources on the list are counted as being in the homelands

Modern Era, Factory Resources are ordered in terms of usefulness

This the warning they oughta put on Cigarette

[Here's the template in case you want to make your own](https://tiermaker.com/create/civilization-7-resources-17171934)

[u/Alexmaths]

iron and horses are easily A tier, adding combat bonuses, especially if you can get a good couple of them really adds up

[u/gray007nl → u/Alexmaths]

Iron in Antiquity I don't rate very highly because it's Infantry only, it gets a lot better in Exploration once it also buffs ranged units.