How can I create a mod? So far I've only seen that you can create it with humankind mod tools, but i understood that you can download it only on steam (in some way that i don't know, it says that I have to go to library tools and i don't know what are them).

I've never any way to accede to it without having bought Humankind on Steam, some of you may suggest me how can i obtain this tools for a person like me that plays on Epic Games?

ps: The really thing that i don't undestand is how to obtain this humankind mod tool (I'd like to create my custom culture in the game, because in game you can build St. Basilius Cathedral during the 4th era but you can't play as russians, so i'd create the Rus' culture)

Thank you for have read so far =D

They only made the mod tool available via Steam for some reason. I'm not sure why, since they don't have a Steam Workshop and the reasoning behind using mod.io over Workshop is because the game is released on platforms other than Steam. Epic doesn't have a "Tools" section, but the mod tool is basically a Unity plugin with a really small program that helps create a new Unity project with the plugin already installed, so I would think it could have just been included in the game installation folder for everyone (well Windows at least... The plugin can be partially loaded on Mac, but gets errors about Windows specific code). 

It would probably work for you if a friend with Steam just sent you the folder with the program in it. 

Also, if you are a coder and are interested in making dll mods for the game, I posted a tutorial HERE on how to do that. DLL mods do not require the dev tool, but can accomplish the same things and more at the cost of requiring some coding knowledge. Installation and enabling methods are also different, but dll mods don't suffer from the drawbacks of mods made with the dev tool (having to re-enable them with every load, UI mapper bug, etc.)

Thank you