Attila religions

The bonus each religion gives the faction that holds it as its state religion, in the game's words, with its religious buildings and how many Grand Campaign regions it is present in at the start.

• Arian Christianity

  Present in 185 regions at the start

  As state religion — Arian Christian

  • Religious influence: +1 Arian Christianity (all regions)

  Religious buildings: Religion, Religion, Religion

• Latin Christianity

  Present in 136 regions at the start

  As state religion — Latin Christian

  • Religious influence: +1 Latin Christianity (in neighbouring provinces) (all provinces)

  Religious buildings: Religion, Religion, Religion

• Graeco-Roman paganism

  Present in 104 regions at the start

  As state religion — Roman Paganism

  • Sanitation: +2 (all regions)

  Religious buildings: Religion, Religion

• Manichaeism

  Present in 72 regions at the start

  As state religion — Manichaeism

  • Public order: Up to +1 bonus from presence of Manichaeism (all provinces)

  Religious buildings: Religion, Religion

• Greek Christianity

  Present in 45 regions at the start

  As state religion — Greek Christian

  • Research rate: +5% for civic developments (factionwide)

  Religious buildings: Religion, Religion, Religion

• Celtic paganism

  Present in 39 regions at the start

  As state religion — Celtic Paganism

  • Wealth: +3% from all buildings (all regions)

  Religious buildings: Religion, Religion

• Zoroastrianism

  Present in 35 regions at the start

  As state religion — Zoroastrian

  • Growth: +1 (all provinces)

  Religious buildings: Religion, Religion, Religion

• Minor Religions

  Present in 29 regions at the start

  As state religion — Minor Religions

  • Morale: +1 (all forces)

  Religious buildings: Religion

• Germanic paganism

  Present in 22 regions at the start

  As state religion — Germanic Paganism

  • Army recruitment capacity: +1 (all provinces)

  Religious buildings: Religion, Religion

• Tengriism

  Present in 11 regions at the start

  As state religion — Tengri

  • Integrity: +1 (all forces)

  Religious buildings: Religion, Religion

• Slavic paganism

  Present in 6 regions at the start

  As state religion — Slavic Paganism

  • Public order: Up to +1 bonus from presence of Slavic paganism (all provinces)

  Religious buildings: Religion, Religion

• Semitic paganism

  Present in 6 regions at the start

  As state religion — Semitic pagan

  • Replenishment: +5% (all armies)

  Religious buildings: Semitic Paganism, Semitic Paganism

• Eastern Christianity

  Present in 5 regions at the start

  As state religion — Eastern Christian

  • Corruption: -5% of current value (factionwide)

  Religious buildings: Eastern Christianity, Eastern Christianity

• Judaism

  Present in 4 regions at the start

  As state religion — Jewish

  • Wealth: +5% from industrial buildings (all regions)

  Religious buildings: Judaism, Judaism

Age of Charlemagne has its own five religions: Christianity, Islam, Judaism, Paganism, Tengriism.

From religions, campaign_faction_religion_effects, effect_bundles_to_effects_junctions, the religion building sets and region_religions (Steam build 25370302).