We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
This is nice to know- I had no idea it only required a random world, and didn't also check that all of the settings were also set to random. I would rather prefer to play with recognizable religions and kingdom boundaries instead of the full rando set-up.
Here's the code from the CK2 common folder for anyone who is skeptical (like I was until 10 minutes ago) that this achievement is really this easy: