Attacking & Defending

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Military Efficiency

Base Military Efficiency

Base Military Efficiency = ( 33 + 67 * ( Effective Wage Rate / 100 ) 0.25 ) * Ruby Dragon * Multi-Attack Protection Bonus
  • Rounded to one decimal point, it should return the most accurate values. Effective Wage Rate lies between 20%(+77.8% Efficiency) to 200%(+112.1% Efficiency).
  • While wages can be changed instantly, the effective wage rate used for base military efficiency changes slowly per tick. It takes approximately 96hrs to go from 20% wages to max at 200% wages.
  • Effective Wage Rate Formula = (Final Wage Rate - Previous Wage Rate)* 0.05 - Previous Wage Rate
Change in Effective Wage Rate =  0.05 * (Wage Rate Paid - Effective Wage Rate)
  • If wages were not fully paid in the previous tick, Wage Rate Paid will be set at minimum regardless of the amount of wages actually paid.

Offensive Military Efficiency

OME = (Base Military Efficiency + Training Ground Bonus + Honor Bonus) * Science Bonus * Race Bonus * Personality Bonus * Fanaticism * Bloodlust * Onslaught Ritual

Defensive Military Efficiency

DME = (Base Military Efficiency + Forts Bonus) * Science Bonus * Race Bonus * Personality Bonus * Minor Protection * Greater Protection * Fanaticism * Plague * Stalwart Ritual

Attacking

Raw Offense

Raw Off = Soldiers + (Offensive Specs * Offspec value) + (Elites * Elite Attack value) + (Horses) + [(Mercs + Prisoners) * 3]

Modified Offense

Mod Off = Raw Offense * (OME + General Bonus)
Condition Modifier
OME check your Military Advisor
General Bonus +5% per additional general over 1

Attack Times

Attack Time = Base Attack Time * Race Bonus * Personality Bonus * Barracks Bonus * Quick Feet * Attack Type * War * NW Mod * Godspeed Ritual
  • Note: War attack speed phases in to a maximum of -25% after 12 hours of war have passed
  • There is a networth value adjustment for attack times. This adjustment compares your networth to the networth of the province you are planning to attack. If these are close to each other the base attack times as given below are used. If the networth differs, then the base attack time is multiplied, so your attack time is longer. This does not affect intra-KD attacks or in war.

Base Attack Time

The base attack time is 16 hours. This is the value all calculations are based upon.

Location Intra KD Different KD
Attack Time 8 16

Minimum Offense to Win

Random factor is +-3.5% for offense and defense. Off/def ratio needed to win is 0.97. Thus in the worst case (-3.5% offense, +3.5% defense) the borderline winning situation is: 

Condition to Win = (Mod Off * 0.965) / (Mod Def * 1.035) ≥ 0.97

Which simplifies to: 

Mod Off = Mod Def * 0.97 * 1.035 / 0.965

Mod Off = Mod Def * 1.040362694

Therefore, to guarantee a win, you must send a Mod Off that is ~4.04% greater than the defenders Mod Def.

On Conquest attacks, the minimum offense to win is 51% of the opponents defense.

Attack Gains

 Gains = Target Resource * Attack Type * RPNW * GBP * Guard Stations * Race * Personality * Relations * Attack time modifier * Anonymity * Expropriation Ritual * Stalwart Ritual * Siege Science * Mist

Province Networth Factor

 Relative Province Networth (rpnw) = Targets Networth / Self Networth
 
 Province Networth Factor = DEPEND ( rpnw ) :
                                     rpnw < 0.567   = 0
                             0.567 < rpnw < 0.9     = 3 * rpnw - 1.7
                             0.9   < rpnw < 1.1     = 1
                             1.1   < rpnw < 1.6     = -2 * rpnw + 3.2
                                     rpnw > 1.6     = 0

Attack time adjustment factor

Adding or subtracting hours modifies the gains (based on your attack time), as follows:

Hours Gains Modifier %
-2 (-2 / base attack time) * 160%
-1 (-1 / base attack time) * 150%
+1 (1 / base attack time) * 80%
+2 (2 / base attack time) * 70%
+3 (3 / base attack time) * 60%
+4 (4 / base attack time) * 50%

Attack Type

Traditional March

Base gains are 12% and are capped at 20% of your acres or your opponent's acres, whichever is smaller.

Ambush

Will return 50% of the acres stolen.

Plunder

Base gains are 50% gold, 60% food and 60% runes. Max gains is 1.35x base (67.5% gold, 81% runes/food). Military Casualties on Learn defense are reduced by 50%.

Learn

Steals around 20% of target's allocated books, base gains are 3% plus around 60% of the target's unallocated books. Military Casualties on Learn defense are reduced by 50%. During War, Learn damages Science Efficiency by ~5%.

Raze

Destroys a portion (~5%) of the targets land. In War, this attack only destroys buildings (~25%).

Conquest

Base gains are 6.8% land for a full hit, gains are decreased in proportion to the relative offense sent vs. targets defence.

Massacre

Base gains are 9.5% peasants, 8.5% thieves and 5% wizards. Efficiency increased roughly 3x during War.

Defending

Raw Defense = (Defense Specs * Def Spec Points) + (Elites at Home * Elite's Defense) + (Soldiers *  Sold Def Points * Aggression) + Townwatch

Mod Defense = MAX ( Raw Defense * Defensive Military Efficiency , Land )
Modifier Type Active Otherwise
Def Spec Points Variable 10
Elite Defense Variable
Town Watch Peasants / 5 0

Minimum Defense

  • All land is protected by a minimum of 1 defense per acre. That is, if you should send every single elite and general out, and release your defense specialists, an opponent would still need to send 1 offense point per acre to conduct a successful attack against you. This does not apply to intra-kingdom attacks.

Military Casualties

Base military casualties are 7% on offense, 5% on defense.

Modifier Type Effect
Race: Orc Enemy's Military Casualties +20%
Race: Undead All Military Casualties -30%
Attack: Learn Defensive Military Casualties -50%
Attack: Plunder Defensive Military Casualties -50%
Ritual: Onslaught Offensive Military Kills +20% Base
Ritual: Godspeed All Military Casualties -15% Base
Building: Hospitals All Military Casualties Varies
Science: Resilience All Military Casualties Varies
Spell: Pitfalls Defensive Military Casualties +25%
Spell: Bloodlust Offensive Military Kills +10%
Spell: Bloodlust Self Military Casualties +20%
Spell: Wrathful Smite Enemy's Military Casualties +20%
Operation: Bribe Generals All Military Casualties 20% chance for +15%
Emerald Dragon All Military Casualties +20%



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