Game classification is the classification of games, forming a game taxonomy. Many different methods of classifying games exist.
- Game categories
- This is a classification scheme proposed by Nicols, which classifies games according to three major categories: the game's physical requirements (i.e. what the game requires in addition to the players — equipment, size and nature of playing field, and so forth), the structure of the game (i.e. number of players, groupings of players, strategies, and so forth), and the game's personal requirements (i.e. what the game requires of the player — motor skills, fitness levels, numeracy, social skills, and so forth).
- Games for understanding
- This is a classification scheme proposed by Werner and Alomond that classifies games according to their strategies. It divides games into target games (e.g. archery); net or wall games (e.g. tennis); striking and field games (e.g. cricket); and invasion games (e.g. football).
- Core content
- This is a classification scheme proposed by Allison and Barrett that categorizes games by their form (i.e. whether they are novel games proposed by the teacher or children, or whether they are existing games already widely played), by the movement skills that they require, by the "movement concepts" and game tactics that they require, and by the educational results of the game.
- Developmental games
- This is a classification scheme proposed by Gallahue and Celand that classifies games into four developmental levels, as part of an overall educational strategy of applying, reinforcing, and implementing movement and sports skills. The levels, in ascending order, are "low-level", "complex", "lead-up", and "official sports".
There are several methods of classifying video games.
Solomon puts forward a "commonsense, but broad" classification of video games, into simulations (the game reflects reality), abstract games (the game itself is the focus of interest), and sports. In addition to these he points out that games (in general, not just video games) fall into classes according to numbers of players. Games with two players encompass board games such as chess. Games with multiple players encompass card games such as poker, and marketed family games such as Monopoly and Scrabble. Puzzles and Solitaire are one-player games. He also includes zero-player games, such as Conway's Game of Life, although acknowledging that others argue that such games do not constitute a game, because they lack any element of competition. He asserts that such zero-player games are nonetheless games because they are used recreationally.
Another method, developed by Wright, divides games into the following categories: educational or informative, sports, sensorimotor (e.g. action games, video games, fighting and shoot-em-up games, and driving and racing simulators), other vehicular simulators (not covered by driving and racing), strategy games (e.g. adventure games, war games, strategic simulations, role-playing games, and puzzles), and "other".
A third method, developed by Funk and Buchman, and refined by others, classifies electronic games into six categories: general entertainment (no fighting or destruction), educational (learning or problem solving), fantasy violence (cartoon characters that must fight or destroy things, and risk being killed, in order to achieve a goal), human violence (like fantasy violence, but with human rather than cartoon characters), nonviolent sports (no fighting or destruction), and sports violence (fighting or destruction involved).
Classification by causes of uncertainty
Games can be categorized by the source of uncertainty which confront the players:
- combinatorics (the large number of sequences of moves) and
- different states of information among the players (each player is knowing only his own cards).
Based on these three causes three classes of games arise:
Game theory classifies games according to several criteria: whether a game is a symmetric game or an asymmetric one, what a game's "sum" is (zero-sum, constant sum, and so forth), whether a game is a sequential game or a simultaneous one, whether a game comprises perfect information or imperfect information, and whether a game is determinate.
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