Anbennar is a fantastic mod for Europa Universalis 4 that has been running for years. It is a passion project that began as the translation of the fantastic D&D scenario made by a man into a playable mod, but which has grown far beyond these origins to a world shared with several authors and one of the EU4 mods. most impressive there is. It is a total conversion, completely replaying the game as a fantasy world with fictional continents, nations, governments, species and religions.
The latest update, called Of Gods and Gears, adds systems for crafting magical crafts and a religion based on it. It also adds vampires and a set of missions for vampire rulers. Use new mechanics for EU4 to rework how orcs hold territory and how adventurous humans try to conquer it and forge their own nations. The update also adds new mission trees for various nations, highlighting missions for Goblins, Gnomes, Kobolds and a human guild whose mechanics are affected by the addition of magical artificiality.
If Anbennar sounds great to you, great news: there is a version of Crusader Kings 3 in the works. In the meantime, you can find Anbennar for Europa Universalis IV at Steam Workshop. For updates on modifications, there are also Embark on Twitter.