Even developer-supported modding is still manipulating the game files, so there may be some troubleshooting necessary on your end. Be aware that most CK3 mods will disable your ability to earn achievements, and they might muck with your saved games if you don't start fresh. Mods often disable achievements or put save files at risk. Since there's so much to parse through, we thought we'd do the heavy lifting and find the mods that stand out as essential so you can search from them directly. Some mods, though, are much grander in scale, including total conversions, dramatically reshaping the game's systems and mechanics. Some of the Crusader Kings 3 mods available are extremely simple, changing up a few graphical options or making minor quality of life changes. All you have to do is head over to the CK3's Steam Workshop page and start browsing through tons of add-on content.
But one of the biggest draws for Paradox's epic strategy game is its fully-functioning mod support and strong modding community. Crusader Kings 3 is such a sandbox for weird scenarios that it seems practically impossible to see and do everything, even in the base game.
