Champions, first published in 1981, is one of the first examples of a role-playing game in which character generation was based on a point-buy system instead of random dice rolls. A player decides what kind of character to play, and designs the character using a set number of "character points", often abbreviated as "CP." The limited number of character points generally defines how powerful the character will be. Points can be used in many ways: to increase personal characteristics, such as strength or intelligence; to buy special skills, such as martial arts or computer programming; or to build superpowers, such as supersonic flight or telepathy.

Players are required not only to design a hero's powers, but also the hero's skills, disadvantages, and other traits. Thus, Champions characters are built with friends, enemies, and weaknesses, along with powers and abilities with varying scales of character point value for each. This design approach intends to make all the facets of Champions characters balanced in relation to each other regardless of the specific abilities and character features. Players are motivated by rewards of character points which are then used to increase the power of their heroes.