The religion that a nation follows and how tolerant it is of other faiths is an important aspect of gameplay in EU4. Religion will affect diplomatic actions and nations of mutually accepted religions have a better chance of reaching agreements with one another. Religion is also connected to unrest and provinces of non-tolerated religions are more rebellious. The player has some control over religion by having the option to change the state religion, religious decisions that may impact internal and external religious relations, and sending missionaries to convert heathen or heretic provinces to the state religion.

All special mechanics of religions require you to have DLCs. The only one that doesn't need it is the Catholic papacy.


Religion chalcedonism Chalcedonism Edit

Chalcedonian Christianity refers to the Christian churches that accept the Definition of Chalcedon from 451. The Chalcedonians the divine and human natures of Jesus of Nazareth are exemplified as two separate natures.

In the game Chalcedonism represents the main branch of Christianity practiced in Rome Rome before the Great Schism.

  • -10% Stability Cost Modifier
  • +1 Tolerance of the True Faith

Religion catholic Catholic Edit

Catholicism is the name of a Christian tradition with its roots in the old Latin rite that recognizes the Pope as the head of Christendom.

In 1444 Catholicism is the dominant Christian Church in western and northern Europe but it will likely be broken up by Protestantism and Reformism during the reformation.

  • +1 Tolerance of the True Faith
  • -1 Tolerance of Heretics
  • Curia Mechanics (papacy is The Papal State The Papal State)

Religion protestant Protestant Edit

Protestantism covers a wide range of religious traditions starting with the teachings of Martin Luther during the reformation. They react against a number of the conventions that over time have developed in the Catholic church and the idea of a pope itself.

In the game Protestantism cover mainly countries inspired by Luther's teachings and who have formed state churches.

  • +10% National Tax Modifier
  • +15% Better Relations Over Time

Religion reformed Reformed Edit

Reformed covers a wide range of religious traditions inspired by men such as Jean Calvin or John Knox. Generally appearing later than the religions classified as Protestant the Reformed religion also rejects papal authority and want to return to the rules of the scriptures but unlike the Protestants they embrace a number of perceived more hard-line ideas such as predestination and iconoclasm and will not form state Churches.

  • +2 Tolerance of Heretics
  • +1 Possible Advisors

Religion orthodox Orthodox Edit

The Orthodox Christian tradition has its root in the Greek rite and considers itself to be closer to the original Christian ideals than Catholicism. The Orthodox Churches reject the idea of the Pope and are instead divided into a number of churches presided over by Patriarchs.

In the game much of Eastern Europe is Orthodox religion.

  • -10% Stability Cost Modifier
  • +1 Tolerance of the True Faith

Religion coptic Coptic Edit

Coptic Christianity is a branch of Christendom that follow the Alexandrine rite and who answer to the Patriarch in Alexandria.

With the fall of Egypt to the Muslims hundreds of years ago the Patriarch is controlled by a Non-Christian state with the Coptic religion surviving as the majority faith only in Ethiopia Ethiopia and Nubia.

  • +10% Fort Defense
  • +2 Tolerance of the True Faith

Religion nestorian Nestorian Edit

Nestorianism is a branch of Christianity that emphasizes the disunion between the human and divine natures of Jesus. It was advanced by Nestorius in the early 400s and declared heretic by the Council of Ephesus in 431.

In the game Nestorianism appears in a few provinces in the Middle East and Mongolia.

  • -10% Stability Cost Modifier
  • +1 Tolerance of the True Faith

Religion arianism Arian Edit

Arianism is a nontrinitarian branch of Christianity that asserts that Jesus Christ is the Son of God, created by God the Father, distinct from the Father and therefore subordinate to the Father. Arian teachings were first attributed to Arius and declared heretical by the First Council of Nicaea in 325.

In the game Arianism is widespread in Europe in the 5th and 6th centuries.

  • +10% National Tax Modifier
  • -10% Stability Cost Modifier

Muslim Edit

Religion sunni Sunni Edit

Sunni Islam holds that the legitimate successor of the Prophet Muhammad was father-in-law Abu Bakr.

As the religion of the majority of the world's Muslims Sunni Islam is present from Morocco to Indonesia and is one of the largest religions in the game.

  • +1 Tolerance of the True Faith
  • +100% Chance of New Heir

Religion shiite Shia Edit

Shia Muslims hold that the legitimate successor of the prophet Muhammad as Caliph and Imam was his cousin and son-in-law Ali. The Shiites believe that a number of Imams have followed Ali and still await the coming of his final successor.

In the game Shia Islam is present in Iran Iran, Iraq Iraq, Yemen Yemen, and as the minority religion in some Indian Sultanates mid-game.

  • +100% Chance of New Heir
  • +10% Morale of Armies

Religion ibadi Ibadi Edit

Ibadism is claimed by its adherents to be older than both Sunni and Shia Islam but is nowhere near as popular. The Ibadis stress strict adherence to an interpretation of Islam and the Sharia that they hold as both older and more orthodox.

In the game Ibadis exist in majority only in Oman Oman and around the Mzab oasis area in North Africa.

  • -10% Ship Cost
  • -10% Advisor Cost

Dharmic Edit

Religion hinduism Hinduism Edit

Hinduism is the term for a wide range of polytheistic Indian traditions with a common pantheon.

One of the oldest religions in the game Hinduism primarily exists in India India and parts of South East Asia where it has been losing ground to Buddhism and Islam.

  • +1 Tolerance of Heathens
  • +1 Tolerance of the True Faith

Religion sikhism Sikhism Edit

Sikhism is the faith founded by Guru Nanak around the turn of the 16th century in the Punjab. A monotheistic religion, Sikhism was born in an area where Islam and Hinduism mixes but is in many ways unlike either.

No province or country start with Sikh religion in the game but it will likely appear some decades from the start.

  • -5% Military Technology Cost
  • -1 National Unrest

Religion jainism Jainism Edit

Jainism is an ancient Indian religion that prescribes the path of ahimsa or non-violence towards all living beings.

In the game Jainism starts as a major religion in India, but gradually declines into a minority religion in later starts.

  • +5% National Tax Modifier
  • +3 Tolerance of Heretics

Religion zunist Zunist Edit

Zunism is a religion centered on worshiping the sun god Zun. Over time, the religion was heavily influenced by Hinduism, with aspects of Shiva and Surya incorporated.

Zunbils are the only Zunist country in the game, playable in southern Afghanistan from mid-600s to mid-800s.

  • Land morale: +10%
  • Defensiveness: +20%

Religion sanamahism Sanamahism Edit

Sanamahism is the worship of Sanamahi, the eternal forces responsible for the creations of the living beings.

Sanamahism is a small religion being a majority only in a small area around Manipur Manipur, which is the only Sanamahist country in the game.

  • +20% Fort Defense
  • +2 Tolerance of Heretics

Religion buddhism Buddhic Edit

Religion mahayana MahayanaEdit

Mahayana is the most widely practiced branch of Buddhism. The goal of its adherents is to achieve enlightenment, possibly even achieve Buddhahood.

In the game only Dai Viet Dai Viet start as Mahayana Buddhist as many countries where it was dominant are instead categorized as Confucian.

  • +2 Tolerance of Heretics
  • +1 Tolerance of Heathens

Religion theravada TheravadaEdit

Like all Buddhist branches, Theravada stems from the teachings of Gautama Buddha in the 5th century BC. The followers of Theravada Buddhism rely on the Pali Canons for religious and legal guidance and emphasis is put on Monastic duties and reaching the status of Arhat or enlightenment.

In the game Theravada Buddhism is primarily practiced in Sri Lanka Sri Lanka and South East Asia.

  • +2 Tolerance of Heretics
  • -10% Advisor Cost

Religion vajrayana VajrayanaEdit

Also known as Tantric Buddhism or even Lamaism, Vajrayana is a branch of Buddhism where the goal of the adherents is to become a Bodhisattva through use of Tantric Techniques. It is believed enlightenment cannot be reached simply from lone study but must be taught by a teacher.

In the game Vajrayana Buddhism is primarily practiced in Tibet and to some degree on the North Asian Steppes.

  • +1 Tolerance of Heretics
  • +10% Morale of Armies


Religion confucianism Confucianism Edit

Confucianism is the term for the philosophies of 5th century BC philosopher Confucius and stresses personal development and the importance of good government.

In the game, Chinese and Korean countries are usually Confucian, with some spread among the Jurchen states in Manchuria.

  • +2 Tolerance of Heretics
  • +1 Tolerance of Heathens

Religion shinto Shinto Edit

Shintoism is the ancient ethnic religion of Japan Japan which over the centuries have come to coexist with Confucianism and Buddhism on the Japanese islands.

In the game all of Japan starts out Shinto to signify the special mix of Buddhism, Shintoism and other traditions of the Japanese people.

  • +10% Morale of Armies

Religion bon Bon Edit

Bon represents the traditional religion of Tibet Tibet. Though Bon was not properly organized until the 11th century, it is based on old pre-Buddhic Tibetan scriptures.

In the game Bon appears in Tibet Tibet before the introduction of Buddhism in the 7th century.

  • Land morale: +10%
  • Tolerance of heathens: +1

Religion muism Muism Edit

Muism is the polytheistic Shamanist religion of Korea. The name comes from the Korean word 'mu' that means shaman.

Muism is the primary religion in Korea before the arrival of Confucianism in the late 400s.

  • +2 Tolerance of Heretics
  • +1 Tolerance of Heathens

Pagan Edit

Religion animism Animist Edit

Animism is the belief that the world is habited by a number of supernatural spiritual beings without any separation of the mundane and spiritual worlds. Spirits may inhabit anything from mountains to lightning depending on the location of the worshippers.

Generally speaking, Animism is found earlier in the game in places like East and Southeast Asia.

  • +1 Tolerance of the True Faith
  • -1 National Unrest
  • +2 Local Missionary Strength

Religion shamanism Shamanism Edit

Shamanist covers a very wide range of indigenous religions. These religions often feature a veneration for shamans, use of magic and traditional medicine.

In the game, parts of Siberia and Canada are where Shamanism is found.

  • +2 Tolerance of Heathens
  • +1 Diplomatic Reputation
  • +2% Local Missionary Strength

Hellenic Edit

Religion hellenism Hellenism Edit

Hellenistic religion represents the various systems of beliefs and practices of the people living under the influence of ancient Greek culture during the Hellenistic period and the Roman Empire.

In the game Hellenism is the religion of the Rome Rome (and its vassals) before the spread of Christianity.

  • +5% National Tax Modifier
  • +2 Tolerance of Heathens

Religion zamolxism Zamolxism Edit

Zamolxism is the Thraco-Dacian religion centered on the god Zamolxis or Zalmoxis. The chief priest held a significant power as the representative of Zamolxis.

In the game Zamolxism exists in the very earliest starts in Dacia Dacia and Thracia.

  • +5% National Tax Modifier
  • +1 Tolerance of Heathens

Religion nabatean Nabataean Edit

The Nabaatean polytheism is mostly aniconic and the gods are generally represented by geometric shapes, but later on other gods and iconography were adopted from other religions such as Hellenism.

Nabataean polytheism only exists in Nabatea Nabataea in some of the earlier starts.

  • +10% Trade Efficiency
  • +1 Tolerance of Heathens

Religion druidism Druidism Edit

Druidism covers various Celtic polytheistic religions. Druids played an important part in the Celtic religion performing practices such as animal sacrifice.

On the game most Druidist provinces are controlled by Rome Rome, but several Druidist countries survive in the British Isles until the 5th century.

  • +1 Tolerance of the True Faith
  • -1 National Unrest

Iranian Edit

Religion zoroastrianism Zoroastrianism Edit

Zoroastrian religion is the traditional faith of the Iranian peoples and the old Persian Empire. Zoroastrians are monotheists, and follow the teachings of the prophet of Zoroaster.

It is the main religion of the Persians before the spread of Islam

  • +2 Tolerance of the True Faith
  • +10% Trade Efficiency

Religion manichaean Manichaean Edit

Manichaeism teaches an elaborate dualistic cosmology describing the struggle between a good, spiritual world of light, and an evil, material world of darkness. Manichaeism was founded by the Iranian prophet Mani in the 3rd century.

In the game Manichaeism exists in some Central Asian provinces around the year 800.

  • +5% National Tax Modifier
  • +2 Tolerance of Heathens

Jewish Edit

Religion judaism Judaism Edit

The oldest Abrahamic religion in the game, Judaism builds upon the Torah and the traditions and scriptures of the Jewish people going back over 3000 years.

By the start of the game the Jewish faith is a minority faith in most of the world and only exists in Israel Israel and Semien Semien, pre-Islamic Arabia, and for a decent amount of time in Khazaria Khazaria.

  • +2 Tolerance of the True Faith
  • +1 Possible Advisors

Non-religious Edit

Religion secularism Secular Edit

Secularism is the principle of the separation of government and religion. A secular country does not force or encourage the practice of one religion over another, instead treating all religions equally.

Many modern countries are secular, but secularism can not appear in provinces.

  • +7 Tolerance of Heretics
  • +7 Tolerance of Heathens
  • +10% National Tax Modifier
  • -20% Stability Cost Modifier
  • -1000% Missionary Strength. This was added to avoid a country making its inhabitants secular, due to the fact that a population cannot religiously follow secularism as it is not an actual religion.
  • -1 National Unrest
  • +100% Religious Unity. To avoid religious rebellions due to the impossibility of secular provinces actually existing.

Religion irreligious Irreligious Edit

Irreligion represents lack of religion.

Irreligion appears in modern starts in a few provinces e.g. in Czechia Czechia, Estonia Estonia, North Korea North Korea, and South Korea South Korea. It can only appear in provinces. It's not possible for a country to be irreligious. If a secular province appears on the map, then it will be converted into irreligious because secular is not a religious belief or position.

  • -100% National Tax Modifier
  • -100% Morale of Armies

American Paganism Edit

Religion totemism Totemism Edit

Totemistic belief teaches that every individual has a spiritual kinship with an animal, the totem. Those who share a totem animal form clans, and consider one-another family.

In the game Totemism is the state religion of all North American Native states and it is present in most of the North American continent.

  • +1 Tolerance of the True Faith
  • -1 National Unrest

Religion mesoamerican Mayan Edit

Mayan religion covers a range of Mesoamerican polytheistic traditions inherited from the older Mayan civilizations. While the names differ the pantheon and many traditions are quite similar to the Nahuatl religion.

In the game the Yucatan Peninsula and the former lands of the Maya League of Mayapan starts out with Mayan religion.

  • +1 Tolerance of the True Faith
  • +1 Possible Advisors

Religion south american South American Edit

The South American religion covers the various pagan religions of the South American native tribes outside the Andean region.

In the game South American religion exists in pre-colonial South America.

  • Tolerance of the True Faith
  • +5% National Tax Modifier

Nahuatl NahuatlEdit

Nahuatl religion is a range of Mesoamerican polytheistic traditions. While the Pantheon and many concepts are quite similar to the Mayan religion the Nahuas or Aztec Aztecs assign a much higher importance on the need for human sacrifice in order to survive each new cosmic cycle.

In the game most of the area around modern central Mexico starts out with Nahuatl religion.

  • _10% Morale of Armies
  • -2 National Unrest

Inti IntiEdit

Inti religion covers a wide range of disparate Andean faiths with many common features. Inti itself is the name of the sun god that the Inca Incan Empire promoted over all the other local Huacas.

In the game most of the Andes start out with the Inti religion.

  • +1 Tolerance of the True Faith
  • -0.05 Monthly Autonomy Change

Slavic pagan Edit

Religion romuva Romuva Edit

Romuva represents the polytheistic religions of the Baltic peoples. The Baltic religions share most of their traditions and gods with slightly varying names. The chief god is typically Dievas.

In the game Romuva exists in the Baltics before the late 1300s when Christianity took over.

  • +20% Hostile Core Creation Cost On Us
  • +1 Attrition for Enemies

Religion slavic Slavic Edit

The Slavic religion encompasses the polytheistic practices of the Slavs before they converted to Christianity. The Slavic pantheon is headed by Perun, the god of thunder and lightning.

In the game the Slavic religion covers large parts of Eastern Europe until the end of the first millennium.

  • +20% Fort Defense
  • +20% Hostile Core-Creation Cost On Us

Religion suomenusko Suomenusko Edit

Suomenusko covers the Uralic, Finnish and Sami Shamanistic religions.

Initially Suomenusko covers large sections of Scandinavia and northern Russia and continues to exist in Lappland until the 1600s.

  • +1 Attrition for Enemies
  • +20% Fort Defense

German pagan Edit

Religion norse Norse Edit

Norse religion is the polytheistic traditional belief system of the Scandinavian peoples.

By 1444 the Norse religion was long gone and exists in no provinces or countries.

  • -10% Land Maintenance Modifier
  • +20% National Manpower Modifier
  • +10% Morale of Armies

Religion germanic Germanic Edit

The Germanic religion is the polytheistic traditional belief system of the pre-Christian Germanic peoples.

It appears in Germany and Eastern Europe until the early 800s when it was replaced by Christianity.

  • -10% Land Maintenance Modifier
  • +20% Land Force Limit Modifier
  • +10% Morale of Armies

Tengri Edit

Religion tengri Tengri Edit

Tengri is the chief deity of one of the oldest Turkic or Mongol Shamanist religions.

In the game this religion covers a wide variety of Siberian and Manchurian Shamanism practiced by the states that start in North Asia.

  • -2 National Unrest
  • -20% Cavalry Cost
  • Syncretic Religion Mechanics Allowed

African pagan Edit

Religion egyptian Egyptian Edit

The Egyptian religion represents the polytheistic religion of the ancient Egyptians. It's centered on the many deities who control the forces and elements of nature. The practices of Egyptian religion were efforts to provide for the gods and gain their favor.

By the start of the game Egyptian religion is in decline, existing only in Nubia.

  • +1 Tolerance of Heretics
  • +1 Tolerance of Heathens

Religion fetishist Fetishist Edit

Fetishism covers a very wide range of indigenous African religions. These religions often feature a veneration for ancestors, use of magic and traditional medicine.

In the game most of Africa is classified as Fetishist.

In files, it's called "shamanism" due to vanilla having switched Shamanism and Fetishism

  • +1 Tolerance of the True Faith
  • +1 Attrition for Enemies

Mesopotamian Edit

Religion ashurism Ashurism Edit

Ashurism is the religion of the Assyrian people. The religion had a myriad of Gods, but it was the God Ashur that was the ultimate worship. All the other Gods were seen as aspects of the Chief God Ashur.

By the start of the game Ashurism has almost disappeared, existing only in Osroene Osroene.

  • +1 Tolerance of Heathens
  • +10% Fort Defense

Religion south arabian South Arabian Edit

The South Arabian religion covers the polytheistic religions practiced by Arabs before Islam. The religion was highly influenced by Mesopotamian polytheism with celestial objects being worshipped as gods. The moon and the morning star were the chief deities.

In the game South Arabian religion exists in the early start dates in Arabia and Aksum Aksum.

  • +2 Tolerance of Heretics
  • +2 Tolerance of Heathens