'''Armor Class''', often shortened to '''AC''', is a statistic defining a level of protection against damage. Creatures have a '''natural AC''', and certain objects - typically [[Clothing|clothing and armor]] - can enhance a creature's Armor Class, either in part (with a piece of clothing that only covers a part of the body) or in full (across the entire body, without exceptions).
There are '''eightseven''' tiers of Armor Class: '''C1, C2, C3, A1, A2, A3, A4, A5'''. They are usually grouped in two categories depending on their prefix: '''Cx''' and '''Ax'''. Certain types of armor have '''Variable AC'''; this concept is explained in its own section below.
== Cx Armor Classes ==
The first three two Armor Classes, referred to as '''unarmored''' and shortened to '''Cx''', are referred to as such because they offer a level of protection expected of '''clothing'''; light, non-armored clothes.
Common traits:
* Little to no reduction of [[Pain]] damage.
** '''C1''': As the lowest value, it is the value used to refer to '''base (Pain) damage'''. It represents the protection level of naked human skin (aka, none) or negligible amounts of hair/furcomparable light animal hides.** '''C2''' represents the protection level of light clothing, such as a T-shirt.** '''C3''' represents the protection level of heavy clothing or tough heavier, tougher animal hides, such as a leather jacket.
* No reduction of [[Limb damage]] at all.
* [[Ammunition|Expanding ammunition]] is more effective, but armor-piercing ammunition is less effective.