Where to buy the game and Steam FAQ (includes how to get the forum key from Steam)

Where to buy the game and Steam FAQ (includes how to get the forum key from Steam)

  • Crusader Kings III Available Now!

    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.

    Real Strategy Requires Cunning


On on the other side of Moon
92 Badges
Jun 11, 2012
  • Stellaris: Synthetic Dawn
  • Europa Universalis IV: Res Publica
  • Victoria: Revolutions
  • Semper Fi
  • Victoria 2: A House Divided
  • Victoria 2: Heart of Darkness
  • Stellaris - Path to Destruction bundle
  • Europa Universalis IV: El Dorado
  • Europa Universalis IV: Pre-order
  • Age of Wonders
  • Crusader Kings II
  • Europa Universalis IV: Third Rome
  • Cities: Skylines - After Dark
  • Cities: Skylines - Mass Transit
  • Europa Universalis IV: Mandate of Heaven
  • Cities: Skylines - Snowfall
  • Europa Universalis IV: Mare Nostrum
  • Stellaris: Galaxy Edition
  • Stellaris: Galaxy Edition
  • Europa Universalis IV: Rights of Man
  • Hearts of Iron III Collection
  • Crusader Kings II: Charlemagne
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Republic
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sword of Islam
  • Europa Universalis III
  • Divine Wind
  • Europa Universalis IV: Art of War
  • Europa Universalis IV: Wealth of Nations
  • Europa Universalis IV: Call to arms event
  • For the Motherland
  • Hearts of Iron III
  • Europa Universalis IV: Conquest of Paradise
  • Hearts of Iron III: Their Finest Hour
  • Heir to the Throne
  • Crusader Kings III
  • Stellaris: Digital Anniversary Edition
  • Crusader Kings II: Reapers Due
  • Hearts of Iron IV: Field Marshal
  • Hearts of Iron IV: Colonel
  • Hearts of Iron IV: Cadet
  • Stellaris: Galaxy Edition
  • Victoria 2
  • 500k Club
  • Crusader Kings II: Monks and Mystics
I've bought EU3 complete, but when registering the game, missed and registered this as EU3 (I'm just saw it a few seconds after :)), now it says (and obvoiusly that's what it should) "Invalid key"
Is there any way to avert my stupidity and inattentiveness, and restore justice?


Master of the Camel Stables
Demi Moderator
94 Badges
Apr 27, 2010
  • Europa Universalis III
  • Crusader Kings III
  • Europa Universalis III Complete
  • Europa Universalis III: Chronicles
  • Europa Universalis III: Collection
  • PDXCON 2017 Gold Ticket holder
  • 500k Club
  • Imperator: Rome Deluxe Edition
Update: I discovered a new feature today which invalidated one point in the Steam FAQ.

Original FAQ Post has been updated, please visit it for full instructions

Steam now has a feature to not use DLC, which means you are able to turn off HTTT or Divine Wind. Note that this will still give you the most recent patch on that expansion.