During the Old World and Mortal Empires campaigns, the Chaos Invasion event increases Chaos Corruption across the entire map.

It is also spread by the Cult of Pleasure subfaction of Dark Elves.

Spreading Untainted reduces all kinds of corruption.Д¬haos corruption is spread by all Warriors of Chaos, Norsca and Beastmen factions.

Factions which do not spread corruption are harmed by all Vampiric and Chaos corruption (not Skaven corruption), taking attrition damage in provinces with over 50% total corruption.

The exception is Morathi's Cult of Pleasure who spread Chaos corruption.

Most Dark Elves factions do not spread corruption and instead spread Untainted.

Skaven spread both Untainted and their own Skaven Corruption (see below).

The Empire, Dwarfs, Bretonnia, Greenskins, High Elves, Wood Elves, Tomb Kings and Lizardmen do not spread corruption, instead spreading untainted.

Prior to this, effects would just say something like 'reduction in vampiric/chaos corruption'.

Untainted was added in Total War: Warhammer II. Factions which do not spread corruption tend to have buildings, commandments and character abilities that reduce corruption/increase untainted. Untainted is anti-corruption, or the absence of corruption. Some army stances can protect that army against corruption and attrition.Д¬haracters belonging to other factions may gain certain traits when spending too much time in corrupted regions. If public order gets too low in a corrupted province, then either a Vampiric, Chaos or Skaven uprising will occur instead of a standard rebellion. However races who spread corruption tend to not get along well with others. Spreading corruption does not, by itself, affect diplomacy with other factions. For instance, Vampire Counts can be harmed by Chaos corruption.Д¬orruption / Untainted can be spread by the presence of armies, some items, the presence of heroes, certain buildings, commandments and also some character skills and followers. However, even a faction with its own corruption to spread can be harmed by other types of corruption. There are 3 kinds of corruption, each with different effects: Chaos corruption, Vampiric corruption and Skaven corruption, in addition to Untainted.Д¬orruption physically changes the appearance of the campaign map.Д«roadly speaking, factions which do not spread corruption are harmed by corruption effects, taking hits to public order and even attrition damage if total corruption exceeds 50%.

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