Absolutely agree with you @rileydyer1. Modding has the potential to turn a nice game into a great one.
From what we know at the moment, adding a mod should be pretty easy. If I understand it right, there will be a folder, into which you will have to add the mod you want to include in Stonehearth. I would expect that Stonehearth will recognize any mod which is included in this folder and will make them accessible to you once you start a new game. The devs also mentioned that they would like to see a “repository”, some kind of a catalogue, for mods, where you can choose from.