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Trait (role-playing games)


A statistic (or stat) in role-playing games is a piece of data that represents a particular aspect of a fictional character. That piece of data is usually a (unitless) integer or, in some cases, a set of dice.

For some types of statistics, this value may be accompanied with a descriptive adjective, sometimes called a specialisation or aspect, that either describes how the character developed that particular score or an affinity for a particular use of that statistic (like Specialisations in Ars Magica or Attribute Aspects in Aria).

Most games divide their statistics into several categories. The set of categories actually used in a game system, as well as the precise statistics within each category, vary greatly. The most often used types of statistic include:

There is no standard nomenclature for statistics; for example, both GURPS and the Storytelling System refer to their statistics as "traits", even though they are treated as attributes and skills.

Many games make use of derived statistics whose values depend on other statistics, which are known as primary or basic statistics. Game-specific concepts such as experience levels, alignment, character class and race can also be considered statistics.

An attribute describes to what extent a character possesses a natural, in-born characteristic common to all characters in the game. Attributes are also called statistics, characteristics or abilities.

Most RPGs use attributes to describe characters’ physical and mental characteristics, for example their strength or wisdom. Many games also include social characteristics as well, for example a character's natural charisma or physical appearance. They often influence the chance to succeed in a skill or other tests by addition to a die roll or by determining the number of dice to be thrown. As a consequence, usually a higher number is better, and ranges can be as small as 1–5 (for numbers of dice) or as great as 1–100 (when adding to results of percentile dice). In some games, attributes represent linearly increasing ability (e.g. in Tunnels and Trolls, where a character can lift 10 lbs per point of Strength) whereas in others a small increase can represent a major gain in ability (e.g. in the DC Heroes/Blood of Heroes system, where +1 to Strength doubles a character's lifting capacity).


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