It should become available in the launcher for you to enable/disable. Find some mods that you want to use and simply Subscribe to a mod you’d like downloaded. Open STEAM, go to Library, click on Crusader Kings 3 and go to Workshop. This method is just as easy as the first one. The mod will start with the game when you select a playset in the launcher that has it enabled. Now you also need to enable a mod for your playset ( more on playsets below) and that’s it. It will be downloaded by the launcher next time you open it up. Find the mod that you want added to your game, make sure you’ve got the latest version selected and then Subscribe to it. Make an account and make sure you’re logged in. Combine them in case that there are mods that you want that aren’t available on both platforms. The other two ways ( STEAM & Paradox Plaza) can be used jointly, so you don’t have to go one or the other.

You’d generally only do this if maybe a mod is not available anywhere else officially but on some 3rd party forum etc. One of them is installing manually, which I do not recommend unless you really have to. In this quick guide I am going to show you 3 ways ( 4 actually) that you can use.

Installing mods in Crusader Kings 3 is very easy.

Manually download steam workshop