Editing Invading

'''Invading''' is the act of one [[dominion]] sending [[military|military units]] to another dominion in another [[realm]].

If the invading force's [[offensive power]] (OP) is greater than the [[defensive power]] (DP) of the targeted dominion, the invasion is successful.

Invading is a crucial part of playing as an [[Attacker]] and [[Converter]].

== How To ==

# Find and calculate your target's DP. 
##The best way to do this is to find out the target's unit numbers and add up all the values of their defensive units then apply any known modifiers. Modifiers can include [[Magic|spells]] such as [[Magic#Self_Spells|Ares Call]] and [[Castle|walls]] bonuses. 
##Land defense is applied if the total defense from military is less the following formula:</br><code>(10 * Total Acres) - 3300</code> </br>
##Apply modifiers to Land defense as you would Military defense.
# Go the [https://beta.opendominion.net/dominion/invade Invade] page.
# Select your target. ''Double check to make sure it's the right one!''
# Input the amount of units you want to send.
# Click Invade.

== Successful Invasion ==

If your invasion is successful, you will gain land and if your target is 75% as big as you are or greater, the land you gain will have a 50% discount for [[buildings]] and you gain [[prestige]]. All land arrives twelve ticks/hours after your invasion.

=== Land Gain ===

Below is a table which shows land conquered for invasions where the attacker is from 500 to 6000 acres and the target is from 40% to 250% the size of the attacker. The minimum amount of acres gained is always 10.

This is the amount of land lost by the target. The attacker's total gain is twice the land conquered. These bonus acres are generated by the game and are not taken from any player. Thus, invasion is not a zero-sum event.

{| class="wikitable"
|+ Land Conquered Before Bonus Acres
! 
! 40%
! 60%
! 75%
! 85%
! 100%
! 120%
! 133%
! 166%
! 250%
|-
| 500 
| 10 
| 10 
| 18 
| 23 
| 30 
| 40 
| 46 
| 62 
| 102
|-
| 1000 
| 10 
| 17 
| 36 
| 46 
| 60 
| 80 
| 92 
| 124 
| 205
|-
| 1500 
| 10 
| 26 
| 54 
| 69 
| 91 
| 120 
| 139 
| 186 
| 308
|-
| 2000 
| 10 
| 35 
| 73 
| 92 
| 121 
| 160 
| 185 
| 249 
| 411
|-
| 2500 
| 10 
| 43 
| 91 
| 115 
| 151 
| 200 
| 231 
| 311 
| 514
|-
| 3000 
| 13 
| 52 
| 109 
| 138 
| 182 
| 240 
| 278 
| 373 
| 617
|-
| 3500 
| 15 
| 61 
| 127 
| 161 
| 212 
| 280 
| 324 
| 436 
| 720
|-
| 4000 
| 17 
| 70 
| 146 
| 184 
| 243 
| 320 
| 370 
| 498 
| 823
|-
| 4500 
| 19 
| 78 
| 164 
| 208 
| 273 
| 360 
| 417 
| 560 
| 926
|-
| 5000 
| 21 
| 87 
| 182 
| 231 
| 303 
| 400 
| 463 
| 623 
| 1029
|-
| 5500 
| 24 
| 96 
| 201 
| 254 
| 334 
| 440 
| 509 
| 685 
| 1132
|-
| 6000 
| 26 
| 105 
| 219 
| 277 
| 364 
| 480 
| 556 
| 747 
| 1235
|}

=== Formula ===

The formula for acres lost depends on "range", or the target's size relative to the attacker. You then multiply the number you get from the formula by 2 to get the amount of acres gained from a hit.

If target range is less than 55%:

<code>0.75 * (0.304 * (range^2) - 0.227 * range + 0.048) * AttackerSize</code>

Otherwise, if target range is less than 75%:

<code>0.75 * (0.154 * range - 0.069) * AttackerSize</code>

If target range is 75% or higher:

<code>0.75 * (0.129 * range - 0.048) * AttackerSize</code>

The "AttackerSize" is typically the current land size of the attacker. However, this variable in the formula is modified during war. In a one-way war, it is increased by 10%. In mutual war, it is increased by 20%.

== Razing ==

Sometimes players will intentionally send less OP than the target's DP to cause [[casualties]] for the target, to lower the target's DP and allow for another dominion to successfully invade or to just do damage. This is called razing.

Razes cause 0% damage at and below 80% of the required offense to break the target, rising linearly to full casualties just below the needed offense to successfully invade.

== Bounce ==

A bounce is a failed invasion. It is distinct from razing in that they are unintentional, often due to the target increasing its DP or the attacker making an error when calculating the target's DP.

If you fail by 20% (if [[OP]] is 80% or less of the target's [[DP]]) or more, the defender does not lose any troops and you also lose [[prestige]]. This is also called ''overwhelmed''.

== Research Points ==

The number of research points (RP) gained during a successful invasion is based on the day of the round, the attacker’s percentage of schools, the relative size of the target, and any wonder or racial bonuses.

If the target is less than 60% the size of the attacker, no research points are gained.

  Final RP<sub>t < 60%</sub> = 0

If the target is 60% or greater, first the base RP gain is calculated as 

  BaseRP = Max (1000, DayOfRound / 0.03)

and then the additional modifiers will be applied.

When the target is greater than or equal to 60% and less than 75%, the base RP gain is halved.

  RP<sub>60% ≤ t < 75%</sub> = BaseRP * 0.5

  FinalRP<sub>60% ≤ t < 75%</sub> = RP<sub>60% ≤ t < 75%</sub> * (1 + WonderBonusPercentage) * (1 + RacialBonusPercentage)

When the target is greater than or equal to 75%, the attacker's schools are taken into account before wonder and racial bonuses.

  BaseSchoolBonus = (130 * Min (SchoolPercentage, SchoolPercentageCap)) * 100
where SchoolPercentage is the attacker's percentage and SchoolPercentageCap is 20%.

  SchoolModifier = 1 – Min (0.8, Max (0, NumberOfRecentInvasions – 2) * 0.2)
where NumberOfRecentInvasions is the number of times the target has been invaded in the last 72 hours, excluding when the target overwhelmed the attacker.

  RP<sub>t ≥ 75%</sub> = BaseRP + (BaseSchoolBonus * SchoolModifier)

  FinalRP<sub>t ≥ 75%</sub> = RP<sub>t ≥ 75%</sub> * (1 + WonderBonusPercentage) * (1 + RacialBonusPercentage)
	

FinalRP<sub>60% ≤ t < 75%</sub> and FinalRP<sub>t >= 75%</sub> are rounded to the nearest whole number and will return with the slowest unit sent on the invasion.

== Bottom feeding ==

This is the act of invading a dominion below your 75% ([[Guards|Elite Guard]]) range. Caution is advised when deciding to do this: you will not have the [[Invading#Successful_Invasion|building discount]] or prestige from a regular hit, and the [[Invading#Formula|formula]] for invasions is also harsher, meaning you'll gain less acres. Races that are more likely to engage in this are [[Lycanthrope]], [[Spirit]], and [[Undead]], due to the conversions they gain when attacking. Conversely, [[Dark_Elf#Military_Units|Dark Elves]] are disincentivised from doing this, due to their Spirit Warriors dying normally when doing so.

If you invade someone between 74.99% and 60%, your [[Prestige]] is unchanged. If you hit below 60%, you will lose Prestige.

== Being Invaded ==

If you are successfully invaded you will lose 5% of your prestige instantly. Any conquered acres that are constructed or under construction will cause your Dominion to gain a discount on rebuilding those acres. This discount does not stack with the discount from invading another Dominion. For example if your Dominion is invaded and you lose 100 acres, and 50 of those acres were still barren and 20 were under construction you will gain a discount on your next 50 acres built from exploration, daily land bonus, or from destroying and rebuilding.

== See Also ==
* [https://dominion.lykanthropos.com/ddc/ Dreki's Dominion Calculator]: an unofficial calculator used to calculate OP and DP.