Adding a new religion

This article is accurate for the latest versions of EU3, Napoleon’s Ambition, In Nomine, Heir to the Throne and Divine Wind.

Adding a new religion is a option open to modders, the description for how to do so is below. Using the Catholic religion as a base we will create a new hybrid between Catholic and Reformed, with some of the advantages and disadvantages of both.

Example new religion

The original data is all in the Religion.txt file with text descriptions in the Localisations for different languages. Our new religion is called ReformedCatholic, and shortened to refocatholic for use in game.

refocatholic = {
 color = { 0.55 0.55 0.45 } # New colour

 allowed_conversion = {
  reformed
  catholic

 } # Can only covert to Catholic or Reformed
 province = {
  stability_cost = 25
 } # Cheaper than Reformed but more expensive than Catholic for stability
 country = {
  colonists = 1
  colonist_placement_chance = 0.1
  diplomats = 1.5
  missionaries = 0.25
  trade_efficiency = 0.05
  global_tax_modifier = -0.05
  global_colonial_growth = 0.05 # +5 people per year in colonies.
 } # Some features of both Catholic and Reformed
 
 heretic = { BOGOMILIST WALDENSIAN FRATICELLI HUSSITE LOLLARD SOCINIAN }
 
 papacy = yes #can play with papacy stuff..
 
 date = 1650.1.1
} # Can use Papacy but is available much later in game.

The comments in the code above show the decisions made to meld the two options. Addition of new icons in graphics folders and adding into appropriate missions is the remaining job.