A pool-building game is a game where the players build a pool of items (e.g. cards or dice) throughout the game.
These games have frequent recycling methods to allow the purchased items to be drawn and played later in the game.
While there are several different types of items used in the pool, like dice or chips, the pool building genre started with Dominion,[citation needed] where players purchase cards from a common area and they get reshuffled into their decks.
When the pool item is a card, the type of game is called a deck-building game.
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