Third Rome

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Third Rome.png Third Rome
Third Rome banner.jpg
Immersion Pack

Release date / Patch
2017-06-14 / 1.22

Store: Immersion Pack
Paradox / Steam

Store: Music Pack
Paradox / Steam
Europa Universalis IV: Third Rome immersion pack features demonstrated by EU4's game designer Jake "DDRJake" Leiper-Ritchie.

Third Rome is the 2nd immersion pack for EU4. It was announced on 2017-05-12[1]. It was released on 2017-06-14[2], coinciding with patch 1.22.

Expansion features[edit]

  • Tsardoms and Principalities: New ranks of Russian government with new abilities and, for Tsars, strong bonuses including the right to claim entire states.
  • Iconography: Commission great religious icons for the Orthodox church, boosting your empire’s power depending on the saint you choose to revere.
  • Metropolitans: Consecrate highly developed provinces with Metropolitans, adding to the authority of the Orthodox church, but for a cost.
  • Streltsy: Special Russian soldiers that excel in combat, but raise the cost of stabilizing your empire.
  • Siberian Frontier: Russian nations can slowly colonize uninhabited border regions, with no fear of native uprisings.
  • Third Rome Content Pack: Adds 48 new unit models to nations in and around the Russian borders.

Free Features[edit]

  • Added new Tsardom government type.
  • Added new Principality government type.
  • Added Veche Republic government type.
  • Added Tsardom events.

Dev diaries[edit]

Main article: Developer diaries

All developer diaries about Third Rome expansion and patch 1.22 (aka Russia).

No. Title and Link Description Date
1 Historical Research Trin Tragula, EU4's content designer, on the process of historical research done with EU4 and its expansions 2017-05-02
2 Bonus Development Diary Sneak peek at features for 1.22, including Press Sailors subject interaction and changes for blockades, marches, Aristocracy ideas and Buddhism 2017-05-05
3 The Russian Principalities Trin Tragula, EU4's content designer, reveals setup changes in the Greater Russian region coming in 1.22 2017-05-09
4 Russian and Cossacks Changes New government types and abilities for the Russian regions in addition to new content for previous expansions 2017-05-16
5 Tsardom New government type comes with new abilities 2017-05-23
6 Icons and Metropolitans Jake elaborates on the expanded mechanics for the followers of the Orthodox faith 2017-05-30
7 Custom Nation Designer and Achievements Jake explains the novelties in the nation designer and introduces new achivements (from his balcony) 2017-06-06
8 Third Rome Update The Third Rome (1.22) changelog 2017-06-13
9 Changing of the Guard Anna "Anona" Norrevik on changes within the team and introduction of the new project lead Linda "Fogbound" Tiger 2017-06-20
10 EU4 Sound Effects David, the sound designer, on complementing the EU4 interface with the right sound effects 2017-06-27


  1. Forum, Europa Universalis IV to Get Immersion Pack "Third Rome", 2017-05-12
  2. Forum, EU4 - Development Diary - 13th of June 2017, 2017-06-13