Incursion Strength (LWR): Difference between revisions

Latest revision as of 22:01, 28 September 2025

In General

Incursion Strength (IS) is a measure of the number of aliens that will be sent to each mission. Higher incursion strengths means more aliens on missions.

Incursion Strength increases as XCOM performs well and decreases if they perform poorly.

Effect of Incursion Strength

The effect of Incursion Strength is directly increasing/decreasing the number of aliens on all non-scripted missions (which as a result increases the chances for an additional alien pod).

Number of Aliens = Base Number * Incursion Strength/100

Increasing and Decreasing Incursion Strength

Incursion Strength starts at 100 and can be modified as follows:


Event	Incursion Strength modification
XCOM successfully completes a mission	+2
A mission expires or is failed	-2
A UFO is destroyed in the air	+1
A soldier dies with a rank greater than the number of months passed	-4
A soldier dies with a rank greater than SGT (does not stack with previous)	-2
An XCOM unit dies (does not stack with previous two)	-1
An aircraft is lost	-2
A country is lost to the aliens	-5

Every day Incursion Strength moves towards 100: There is an x% chance to move 1 closer towards 100 at the end of each day

x = ABSOLUTE(Incursion Strength - 100) * Difficulty modifier    [Where Difficulty modifier is 2.00/1.83/1.67/1.50/1.33 for Easy/.../Pain]

All changes in incursion strength are modified by campaign length (except for lost country). High levels of Incursion Strength will be denoted with an additional + sign on landed UFO, terror, and abduction missions.

@@ Line 2: / Line 2: @@
 == In General ==
-Incursion Strength is a measure of the number of aliens that will be sent to each mission. Higher incursion strengths will reward XCOM with a plethora of bonuses but also present more difficult missions.
+'''Incursion Strength''' (IS) is a measure of the number of aliens that will be sent to each mission. Higher incursion strengths means more aliens on missions.
-Incursion Strength increases as XCOM performs well, and decreases if they perform poorly.
+Incursion Strength increases as XCOM performs well and decreases if they perform poorly.
+== Effect of Incursion Strength ==
+The effect of Incursion Strength is directly increasing/decreasing the number of aliens on all non-scripted missions (which as a result increases the chances for an additional alien pod).
+ Number of Aliens = Base Number * Incursion Strength/100
 ==Increasing and Decreasing Incursion Strength==
-Incursion Strength starts at 100% and can be modified as follows:
+Incursion Strength starts at 100 and can be modified as follows:
 {| class="wikitable" cellpadding="15" style="text-align:center;"
 |+
@@ Line 15: / Line 20: @@
 ! Incursion Strength modification
 |-
-|| XCOM successfully completes a mission (except for UFO missions or Alien Base Assaults)
+|| XCOM successfully completes a mission
-|| +1%
+|| +2
 |-
-|| A soldier dies with a rank greater than either the number of months passed or 5 (SGT)
+|| A mission expires or is failed
-|| -1%
+|| -2
 |-
-|| An Exalt or Abduction mission loss
+|| A UFO is destroyed in the air
-|| -5%
+|| +1
 |-
-|| A DLC or Council mission loss
+|| A soldier dies with a rank greater than the number of months passed
-|| -15%
+|| -4
 |-
-|| A Terror Site or XCOM Defense mission loss
+|| A soldier dies with a rank greater than SGT (does not stack with previous)
-|| -20%
+|| -2
+|-
+|| An XCOM unit dies (does not stack with previous two)
+|| -1
+|-
+|| An aircraft is lost
+|| -2
+|-
+|| A country is lost to the aliens
+|| -5
 |}
-* A loss applies to any mission where the Skyranger landed and the mission was not a success
+ Every day Incursion Strength moves towards 100: There is an ''x''% chance to move 1 closer towards 100 at the end of each day
-* UFO missions and Alien Base Assaults losses do not decrease Incursion Strength
-* Incursion Strength is capped between a minimum of 50% and a maximum of 200%, and the minimum increases by 5% per month
-* Incursion Strength at or above 120% will be denoted with an additional + sign on landed UFO, terror, and abduction missions
-== Effect of Incursion Strength ==
-The main effect of Incursion Strength is directly increasing the number of aliens on all non-scripted missions.
- Number of Aliens = Base Number * Incursion Strength
-However, higher incursion strength also '''directly''' modifies many other aspects of a campaign:
+ ''x'' = ABSOLUTE(Incursion Strength - 100) * '''Difficulty modifier'''    [Where '''Difficulty modifier''' is 2.00/1.83/1.67/1.50/1.33 for Easy/.../Pain]
-* The XP gain of all XCOM soldiers
+All changes in incursion strength are modified by campaign length (except for lost country). High levels of Incursion Strength will be denoted with an additional + sign on landed UFO, terror, and abduction missions.
-* The rate of XCOM research and engineer production
-* The amount of Alloy, Elerium, Weapon Fragments, and most alien artifacts recovered after each mission
-* Quick mission bonuses, Council mission rewards, Terror mission credit bonuses, and Council request offers
 ==See also==