Byzantine Empire
JFD ByzantiumAlexiosMap 512
Map by TarcisioCM
Alexios I Komnenos
Eastern Orthodoxy
Religious Intolerance
Protective, Spiritual
Alternate Leader of:


Byantium led by Alexios I Komnenos is a custom civilization mod by JFD and Janboruta, with contributions from Tarcisio, and Regalman.

This mod requires Brave New World, and works best with Gazebo's Community Patch.  



Existing for more than 1,000 years, the Byzantine Empire, centered in the legendary city of Constantinople, was initially formed as the eastern seat of power for the mighty Roman Empire. Located along the trade routes connecting Europe to Asia, Constantinople grew to become the primary trade hub in the region, flourishing despite the conflicts that led to the decline of Rome in the west. Inspired by a number of memorable rulers, the Byzantine Empire was also a source of great cultural growth along the eastern Mediterranean, its affluence allowing for grand displays of art, architecture, science, and music.

Alexios I Komnenos

AlexiosI Diplo

Leaderscene by Janboruta

Alexios I Komnenos, Latinized as Alexius I Comnenus, was Byzantine emperor from 1081 to 1118. Although he was not the founder of the Komnenian dynasty, it was during his reign that the Komnenos family came to full power. Inheriting a collapsing empire and faced with constant warfare during his reign against both the Seljuq Turks in Asia Minor and the Normans in the western Balkans, Alexios was able to halt the Byzantine decline and begin the military, financial, and territorial recovery known as the Komnenian restoration. His appeals to Western Europe for help against the Turks were also the catalyst that likely contributed to the convoking of the Crusades.

Dawn of Man

Glory to the restorer of Rome, Alexios Komnenos, Emperor of Byzantium! Ascending to the throne of a dying empire, you were beset from all sides by war; facing constant threat from the east by the Turks and from the west by the Normans. However, it was with your adept skill as a military ruler that you were able to pull Byzantium from the brink of destruction, ushering in a restoration of the once fabled Eastern Rome. Under your appeal to the West, you then convoked what would come to be the Crusades, and initiated a centuries long campaign against the encroaching Muslim armies.

Great Restorer! Byzantium once more hinges upon the aptitude of your leadership and her faith depends upon your fortitude. Can you strengthen the bastions of her ancient cities and restore her armies to their former glory? Can you build a civilization to stand the test of time?

Introduction: "I am Alexios Komnenos. If you should come here seeking the great riches that behold my empire, then I shall respond to you with the great strength of my armies and the great fortitude of my cities."

Introduction: "Hail and welcome. I am Alexios Komnenos, Emperor of Byzantium. If there isn't much business to be had, allow me to return to my prayers."

Defeat: "I was charged with her protection, and I have failed her. I have failed God. The true spirit of Rome, now, is yours for the taking."

Unique Attributes

Byzantium (Alexios I Komnenos)

Art by Janboruta

Komnenian Restoration

Receive a Goldenage Golden Age at the outbreak of war with a major civilization, with the length increasing with the number of enemy cities. Cities with a garrison gain +100% Ranged Strength during Goldenage Golden Ages.


Art by Janboruta

Varangian Guard (Swordsman)
  • Does not require Iron Iron.
  • May only be purchased.
  • Begins with a random promotion.
  • If purchased during a Goldenage Golden Age, begins with +15 XP.
  • Unlocked at Mercenaries.[1]

Art by Janboruta

Lanternas (Galleass)
  • May withdraw when faced with a melee attack
  • Heals 15 HP every turn during a Goldenage Golden Age
JFD ByzantiumAlexiusAtlas 256-1



Peace Theme War Theme
CK2 Songs of Byzantium - The Byzantine Empire05:05

CK2 Songs of Byzantium - The Byzantine Empire

CK2 Songs of Byzantium - Legacy of Rome03:40

CK2 Songs of Byzantium - Legacy of Rome

'The Byzantine Empire' by Andreas Waldeloft 'Legacy of Rome' by Andreas Waldeloft

Mod Support

Mod Support
Community Balance Patch
Ethnic Units
Map Labels
Unique Cultural Influence
Wish for the World

Events and Decisions

Establish the Succession Laws of Porphyrogennetos
Henceforth, all those born to the reigning Basileus shall be given the title "Porphyrogennetos" - "Born in the Purple". They shall be given precedence in the matter of succession.
  • Player must be Byzantium (Alexios).
  • Must have completed at least 1 Social Policy Tree.
  • May only be enacted in the Classical or Medieval Era.
  • May only be enacted once per game.
  • 200 CultureIcon Culture.
  • 2 Magistrates Magistrate.
  • +4 Gold Gold, +3 CultureIcon Culture, and +2 Happy Happiness from the Palace.
Reform the Thematic System
Our empire is composed of administrative themes; named for the military garrisons which occupy them. But much of our administration is outdated and in need of significant improvement. Let us then reform the thematic system and improve upon their capabilities.
  • Player must be Byzantium (Alexios).
  • May only be enacted from the beginning of the Classical Era.
  • May only be enacted once per game.
  • 150 Gold Gold per conquered city.
  • 2 Magistrates Magistrate.
  • +33% Production Production toward Barracks, Walls, Armories, and Castles.

Unique Cultural Influence

"Our people now write your sacred icons and only wear purple clothing. I am worried the rest of the world will soon yield to the eerie ways of your empire."

Full Credits List

Steam Workshop
Latest Version: v 5
Last Updated: 1 December 2016

  • JFD: Author.
  • Janboruta: Art (Civ Icon, Leader Icon, Unique Component Icons, Leaderscene).
  • Tarcisio: Art (Map).
  • Andreas Waldeloft: Music.[2][3]
  • Typhlomence: UniqueDiplomacyUtils.lua.[4]

Notes and References

  1. Requires RtP: Mercenaries.
  2. CK2 Songs of Byzantium - The Byzantine Empire
  3. CK2 Songs of Byzantium - Legacy of Rome
  4. Lua for Unique Diplomacy Entries
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