Third Rome is a new immersion pack for Europa Universalis IV, that adds new gameplay features for the Russian empire and is available for $9.99.
https://www.youtube.com/watch?v=5q9EKpy7cCI
In Third Rome, players will find new means to wield spiritual, political, and military control in the Russian empire, with new ranks of government and unique military units.
The road to Tsardom is yours to walk.
Get EUIV: Third Rome RIGHT HERE