Incursion Strength (LWR)

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In General

Incursion Strength 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.

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	+1% (modified by campaign length)
A soldier dies with a rank greater than either the number of months passed or 5 (SGT)	-4% (modified by campaign length)
A country is lost to the aliens	-12%
A successful Alien Base Assault	Maxed

• Incursion Strength is capped between a minimum of 70% and a maximum of 110%
• Incursion Strength at 110% 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:

• The XP gain of all XCOM soldiers
• 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

Long War Rebalance: Aliens
Aliens	Alien Life Forms • Alien Missions • UFOs • Alien Artifacts • Alien Level • Alien Resources • Alien Aggression