Stability

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VeF replaces the "button click" stability mechanic in Europa Universalis IV with a new stability system.


How it Works - Basic Concept

National Stability is a variable ranging from -500 upward to the value required to advance by +1 stability (the base value for gain is 500 but is adjusted by any modifier that would normally change stability cost in vanilla). Reaching -500 will result in -1 stability while reaching the threshold will result in +1 stability. The current National Stability and the threshold are displayed


Positive Stability Factors

  • 2.00 per month if Stability is less than -2
  • 1.50 per month if Stability is less than -1
  • 1.00 per month if Stability is less than 0
  • 1.25 per month if Stability is less than 1 (does not apply to Nomad tech)
  • 0.75 per month if Stability is less than 2 (does not apply to Nomad tech)
  • 0.5 per month if Stability is less than 3 (does not apply to Nomad tech)
  • 2.50 per month when running the Domestic Tranquility policy
  • 0.60 per month with less than 6 cities and Stability is less than 2
  • 1.0 per month multiplied by the percentage of provinces that have a Sheriff's Office in their state
  • 1.5 per month multiplied by the percentage of provinces that have a Courthousein their state
  • 2.0 per month multiplied by the percentage of provinces that have a Governor's Palace in their state
    • Provinces in your capital state are counted in one of the three above based on the highest building you've unlocked
  • 0.25 per month if at war with at least 10% Warscore (doubled for nomads)"

Negative Stability Factors

  • -0.50 per month if at war with less than -10% Warscore (-0.75 for nomads)
  • -1.00 per month if at war with less than -25% Warscore (-1.5 for nomads)
  • -0.50 per month if any state province has at least 5 Unrest
  • -0.50 per month if any state province has at least 10 Unrest
  • -2.50 per month if at least 3 state provinces have 10+ Unrest
  • -0.50 per month if any state province has at least 15 Unrest
  • -1.00 per month if at least 3 state provinces have 15+ Unrest
  • -0.50 per month if at least 3 provinces anywhere have 10+ Unrest
  • -0.50 per month if at least 3 provinces anywhere have 15+ Unrest
  • -150.00 when getting a new ruler while Legitimacy is less than 40 (Monarchy only)
  • -100 when entering a regency"

Stability and Conquered Provinces

National Stability undergoes a one-time change when a new province is conquered based on the following:

  • BASE LOSS:
    • 100 Standard loss
    • -40 Core province
    • -20 Permanent claim
    • -20 Same culture
    • -10 Same culture group (but not culture)
    • -15 Same religion
    • -5 Same religious group (but not religion)

The BASE LOSS is then multiplied by a factor based on development:

  • STABILITY LOSS = BASE LOSS X PROVINCE DEVELOPMENT / (TOTAL DEVELOPMENT X 10)
  • This results that a province representing 10% of your total development gives the base loss value