I'm not sure, I wouldn't think so because it doesn't change anything just adds but idk

Have I to start a new game to use this mod?

perfect, thank you so much! currently when opening your mods files through the g3 mod launcher, there's many more folders included so I wasn't sure which ones were actually effected so I could clean it up and remove unnecessary folders and files like 'animals' 'buildings' interiors' etc. Thanks again, looking forward to trying this!

The files that I edited are "base/guild3/Actions/ArtefactActions", "base/guild3/Items/all but EventItems, GatheredItems and ResourceProducerItems", and "base/guild3/G3SkillsDefault". The way Guild 3 mods work if any other mods also change those files one will overwrite so it's not super multi-mod friendly but all my changes are at the bottom separated so if you want to combine it onto another mod you'd just have to copy and paste!

What files are changed/added with this? I'm having trouble to get it to run with other mods.