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Gameplay where players gain benefit by remembering facts about the game or game state.

While many games require players to make as good choices as possible to increase their chances of winning, not all require that players need to remember the rules and specifics of game states to be able to make these choices. Those games that do have Memorizing as a gameplay mechanic and this may concern both facts and information that remain constant between game instance and being able to keep track of the details of an ongoing game instance.+


Many card games, e.g. Contract Bridge, Poker, and Blackjack, give players benefits for Memorizing played cards, as this allows them to predict what cards they will be dealt or what possible card hands other players can have. Although not forbidden by the rules of the games, casinos have rules that forbid card counting and ban players who are identified Memorizing the cards.

Blind Chess is a variant of Chess made more difficult by being played without any physical game elements so that both players are required to remember the complete game state to be able to do good moves.

The games in the Simon toy[1] by Mattel show patterns to players by playing sounds and showing lights. The players' goals are to repeat the patterns, which makes Memorizing the primary game skill.

Using the pattern

The use of Memorizing is not totally dependent on either Imperfect Information or Perfect Information but rather on if players' gameplay is affected by a lack of knowledge, which can be how to use information presence in the game. The lack of knowledge can be either regarding the game state or regarding the rules of the game and can create additional challenges to the rewards from Gain Information goals, if access to the gained information is not provided continuously by the game.

Memorizing can either be applicable for all game sessions of a game or be specific for individual game sessions. The first type is the learning of Strategic Knowledge, such as the distributions of effects determined by Randomness, and is present in all games, but may be explicitly encouraged by game design where players receive Extra-Game Information. Explicitly supporting Memorizing in individual game instance requires some variation in the initial game state (e.g. through Randomness) and then having some way of giving players access to information that they have to remember since it will not always be available. One way of doing this is through having Imperfect Information that becomes Perfect Information for a while, i.e. by using Time Limits and then reverts to Imperfect Information as presented by the game system - the game of Memory is an archetypical example of this. Another way is through the use of Drawing Stacks, e.g. Blackjack, since here remembering which Cards have been drawn helps one figure out which Cards are most likely appear next.

Whether they change between game sessions, the locations of Traps, Invisible Walls, and Strategic Locations are typical aspects of games worth Memorizing, and may be made into explicit goals of Exploration. If a game does not provide Progress Indicators for when Delayed Effects will take place or when a Development Time is nearing completion, Memorizing these facts may be necessary to be able to game well. Changing game states or Game Worlds so new memorization is required for each game session can be achieved through Reconfigurable Game Worlds as long as players do not have complete overview of the whole gameplay area, e.g. through use of Fog of War.

Memorization of the rules is not usually a designed feature of games but nevertheless affects gameplay. Smooth execution of Self-Facilitated Games requires that players spend time Memorizing the rules, but may be eased by providing Book-Keeping Tokens and handouts. Players are motivated to do this since failure to remember rules give them a Limited Set of Actions and Limited Foresight compared to other players, and failure to follow rules may cause rule arguments, which can usually not be corrected if the game state has change too much. The presence of Game Masters makes Memorizing all parts of the rules optional players but may still be interesting for reasons of Empowerment and Game Mastery. The Dedicated Game Facilitators that computer can be for games allow players to start playing the games without any knowledge of rules and make the learning of them a combination of Exploration and Memorizing.

Interface Aspects

The need for Memorizing can be lessened or made completely unnecessary for game instant specific issues through the use of Game State Indicators and Game State Overviews.


When done during gameplay, Memorizing can give players Cognitive Engrossment in games and when possible to do generally is one skill that can determine if players have Game Mastery or not. Since having memorized rules and facts can affect the efficiency of players gameplay, doing this correctly can also affect what level of Empowerment they have. When this information can be used to directly solve specific goals, for example those related to Puzzle Solving, the possibility of Memorizing in a game lessens its Replayability. When instead it helps predict the likelihood of future events, e.g. through Memorizing what Cards or Tiles have been drawn from Drawing Stacks and thereby letting on predict better the probabilities for future draws, Memorizing supports Stimulated Planning.

As part of striving toward Memorizing players may have Gain Information goals if not all information that is to be memorized are known.

For Self-Facilitated Games, Memorizing the rules is needed by at least one of the players for gameplay to not halt to consult rules (most likely creating Downtime for some of the players).

Can Instantiate

Player/Character Skill Composites

with Perfect Information

Difficulty Levels

Can Modulate

Action Programming,


Can Instantiate

Cognitive Engrossment, Empowerment, Gain Information, Game Mastery, Player/Character Skill Composites

with Drawing Stacks

Stimulated Planning

with Perfect Information

Difficulty Levels

Can Modulate

Action Programming, Self-Facilitated Games

Can Be Instantiated By

Delayed Effects, Development Time, Drawing Stacks, Invisible Walls, Randomness, Strategic Knowledge, Strategic Locations, Traps

Fog of War together with Reconfigurable Game Worlds

Can Be Modulated By

Book-Keeping Tokens, Dedicated Game Facilitators, Extra-Game Information, Game Masters, Game State Indicators, Game State Overviews

Possible Closure Effects


Potentially Conflicting With

Game State Indicators, Game State Overviews

Replayability when Memorizing can be applied to Puzzle Solving


An updated version of the pattern Memorizing that was part of the original collection in the book Patterns in Game Design[2].


  1. The Wikipedia entry for the toy Simon.
  2. Björk, S. & Holopainen, J. (2004) Patterns in Game Design. Charles River Media. ISBN1-58450-354-8.