The realm rejoices as Paradox Interactive announces the launch of Crusader Kings III, the latest entry in the publisher’s grand strategy role-playing game franchise. Advisors may now jockey for positions of influence and adversaries should save their schemes for another day, because on this day Crusader Kings III can be purchased on Steam, the Paradox Store, and other major online retailers.
It might be the wrong one but it says Download - Post-v3.2. It is at the top of the User Modifications page
For me it opens another tab but then just instantly closes it.