I’m a big fan of Grim Dawn and I was especially excited when modding support was confirmed many moons ago. It has taken some time for the tools to make their way out into the wild though. That day came late last week in a patch which also ironed out a couple of minor kinks in the game as well.
If you’ve purchased the game on Steam, then the editors necessary to create your ideal mod are already sitting on your PC, provided you’ve allowed automatic updating (as if you’d actually turn that off…). Fair warning, much like the game itself, this is not a venture for the faint of heart. There is a steep learning curve which involves editing databases and Lua scripting if you plan on getting get the most out of the modding tools. I’ve taken a look because I’m interested in creating my own mastery class, an unarmed fist fighter, but I don’t think I’ll be able to get anything working any time soon, even with some low level script knowledge.
Despite the difficulty in creating mods, applying mods to the game is simple enough. Within the games directory, you will find a mods folder, and all you have to do is place any completed projects in there and launch a custom game that selects the mod in question. As of writing there are only a few projects to test but to be fair, it has only been a few days since the tool was released, so maybe we’ll just have to keep an eye on the forums and see what turns up.