Civilization V Customisation Wiki
For other mods, see Bosnia (Tvrtko I).

Bosnia led by Tvrtko I is a custom civilization by JFD and Janboruta, with contributions from Alga, COF, DarthKyofu, and Relic.

This mod requires Brave New World.



The Kingdom of Bosnia, or Bosnian Kingdom, was a medieval kingdom that lasted for nearly a century, from 1377 to 1463, and evolved out of the Banate of Bosnia, which itself lasted since at least 1154. Although Hungarian kings viewed Bosnia as under their sovereignty during this time, Bosnian sovereignty and independence in conducting its affairs is nevertheless undeniable. King Tvrtko I acquired portions of western Serbia and most of the Adriatic coast south of the Neretva River. During the late part of his reign, Bosnia became one of the strongest states in the Balkan Peninsula. However, feudal fragmentation remained important in Bosnia and the Bosnian nobility held significant power, exercising it at the Stanak meetings where members deliberated on matters such as election of the new king or queen and coronations, foreign policy, sale or cession of territory, contracting and signing treaties with neighboring countries, and military issues. The Ottoman Empire annexed portions of eastern Bosnia in the 1440s and 1450s and went on to conquer Hum, by then renamed to Herzegovina, with the last fortress falling in 1481. Stephen Tomašević, the last king of Bosnia, was captured by the Ottomans and killed in 1463.

Tvrtko I[]

Stephen Tvrtko I was the first king of Bosnia. A member of the House of Kotromanic, he succeeded his uncle Stephen II as Ban of Bosnia in 1353. As he was a minor at the time, Tvrtko's father, Vladislav, briefly ruled as regent, followed by Tvrtko's mother, Jelena. Early in his personal rule, Tvrtko quarreled with his country's Roman Catholic clergy, but later enjoyed cordial relations with all the religious communities in his realm. After initial difficulties – the loss of large parts of Bosnia to his overlord, King Louis I of Hungary, and being briefly deposed by his magnates – Tvrtko's power grew considerably. He conquered some remnants of the neighbouring Serbian Empire in 1373, after the death of its last ruler and his distant relative, Uroš the Weak. In 1377, he had himself crowned king of Bosnia and of Serbia, claiming to be the heir of Serbia's extinct Nemanjic dynasty.

As the Kingdom of Bosnia continued to expand, Tvrtko's attention shifted to the Adriatic coast. He gained control of the entire Pomorje and the major maritime cities of the area, established new settlements and started building a navy, but never succeeded in subjugating the lords of the independent Serbian territories. The death of King Louis and the accession of Queen Mary in 1382 allowed Tvrtko to take advantage of the ensuing succession crisis in Hungary and Croatia. After bitter fighting, from 1385 to 1390, Tvrtko succeeded in conquering large parts of Slavonia, Dalmatia, and Croatia proper. Following the Battle of Kosovo in 1389, his tenuous claim to Serbia became a mere fiction, as the Serbian rulers he sought to subdue became vassals of the victorious Ottoman Empire. The Ottoman Turks also launched their first attacks on Bosnia during Tvrtko's reign, but his army was able to repel them. Tvrtko's sudden death in 1391 prevented him from solidifying the Kotromanic hold on Croatian lands.

Tvrtko is widely considered one of Bosnia's greatest medieval rulers, having enlarged the country's borders to their greatest extent, left a strong economy, and improved the living standards of his subjects. He was survived by at least one son, Tvrtko II, but was succeeded by Dabiša, under whom Tvrtko's burgeoning realm began to decay.

Dawn of Man[]

"O' mighty Tvrtko I, the Serbian empire has fallen, and the Balkans are ripe for the taking. You are the first king of Bosnia. Taking advantage of the dramatic fall of Dusan's Serbian empire, you would go on to forge Bosnia's greatest kingdom. You sought to secure not only the great swathes of Serbian land for your own, but so too the great riches of the Adriatic coast. Although the rising threat of the Ottoman Turks was no match for your military might, your sudden death in 1391 would ultimately be the undoing of your imperial ambitions.

JFD BosniaTvrtkoI Diplo

Art by Janboruta and COF

Tvrtko, no more shall the Bosnian empire remain a mere fiction. Cities will fall to their knees if only you show them your strength. Can you seize what is rightfully yours? Can you secure the great wealth and prosperity promised by a coastal empire? Can you build a civilization to stand the test of time?"

Introduction: "A stranger enters my lands. I am Tvrtko I, lord of all of Bosnia and Serbia before me. Kneel."

Defeat: "You will not hold my lands together for long. My defeat will see to that."

Unique Attributes[]

Bosnia (Tvrtko I)

Art by COF

Wealth of Pomorje

Conquering a coastal city incurs no Resistance Resistance if you have more cities than the original owner. Courthouses grant all available Trade Buildings when built.


Art by Alga

Krstjani (Inquisitor)
  • Causes a city to claim a new tile when expended, and an additional tile for every Stecak worked by the city.
  • Receive a Krstjani with every Missionary purchased, and two if purchased as an Inquisitor.

Art by Relic

  • +1 CultureIcon Culture.
  • +1 FaithIcon Faith.
  • Cannot be removed.
  • Must be built on Flatland.
  • When worked, contributes its FaithIcon Faith and CultureIcon Culture output as Production Production toward the construction of Courthouses and Military Buildings.
City List
  1. Bobovac
  2. Visoko
  3. Mostre
  4. Jajce
  5. Srebrenik
  6. Sutiska
  7. Brdo
  8. Hvojnica
  9. Vrhbosna
  10. Kljuc
  11. Trebinje
  12. Tuzla
  13. Olovo
  14. Split
  15. Zenica
  16. Krsevo
  17. Praca
  18. Mostar
  19. Sibenik
  20. Brcko
  21. Kotor
  22. Bihac
  23. Drijeva
  24. Trebinje
  25. Travnik
  26. Sokol
  27. Doboj
  28. Cazin
  29. Goražde
  30. Visegrad
  31. Gracanica
  32. Gradacac
Spy List
  • Stephen
  • George
  • Vuk
  • Jelena
  • Dorothea
  • Vladislav
  • Peter
  • Nicholas
  • Marko
  • Mavro




Peace Theme War Theme
"Mountains of Hope" from the soundtrack of Medieval 2 Teutonic Campaign. "Darker Skies Ahead" by James Vincent.

Mod Support[]

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

Full Credits List[]

Steam Workshop
Latest Version: v 1
Last Updated: 15 May 2021
  • JFD: Author, Coding, Design, Research, Writing
  • Alga: Art (Unit Icon)
  • COF: Art (Leaderscene)
  • DarthKyofu: Art (Civ Icon; Map), Research (Cities)
  • Janboruta: Art (Leaderscene)
  • Relic: Graphics (Improvement Model)
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