Dan & Paul discuss the role of skill systems in D&D and other tabletop RPGs. Not part of the initial Original D&D ruleset, they give PCs an opportunity to master individual skills in a fine-grained manner. Have they been beneficial to D&D, or a distraction? Do they work better in other games, like sci-fi or horror?

A skill represents the learned knowledge and abilities of a character. Skills are known by various names, including proficiencies, abilities, powers, talents and knacks.

During character creation, a player character's skills are generally chosen from a long list. A character may have a fixed number of starting skills, or they may be paid for using character points. In contrast to attributes, very few games fix a player's skills at the start of the game, instead allowing players to increase them by spending experience points or during "levelling up". Since some skills are likely to be more useful than others, different skills often have different costs.

Skills usually influence a character's chance to succeed by adding to the relevant attribute. In some games (such as GURPS), each skill has a specific base attribute to which it is always added; in others (such as Ars Magica), a skill can be added to different attributes depending on how the skill is being used. Some games (such as Feng Shui) add the base attribute to the skill at character creation time; after that, it is independent of the attribute and is used instead of the attribute rather than adding to it. Most games have a fixed penalty for attempting a task without a relevant skill; older editions of Shadowrun gave a complex network of penalties for using similar skills (such as attempting to pick an electronic lock by using the Computer skill instead of the Electronics skill). The text-based roleplaying game Avalon: The Legend Lives is noted for being the first text based multi user role-playing game to offer a developed profession and skills system.

This description uses material from the Wikipedia article "Statistic (role-playing games)", which is released under the Creative Commons Attribution-Share-Alike License 3.0.