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Typically a graphical style where there are one two colors. (A bit can be either on or off, so two options) Commonly black and white, but can be any combination depending on the style the creator is trying to accomplish. 

Featuring gameplay centered around the strategic use of cards, these games often involve building decks, managing resources, and executing tactical decisions. Players might encounter various mechanics such as turn-based combat, deckbuilding, and card collection.