Card-driven games (CDGs) are board games in which players use cards to influence the course of the game. Cards can represent different actions, events, characters or resources and require strategic planning as players must carefully consider when and how best to use them. These games are often inspired by historical or wartime events, where the cards reflect actual situations or decisions that were possible at the time. Different combinations of cards and their effects ensure that each game will be different, which contributes greatly to its replayability. CDGs cover a wide range of topics, from history to fantasy.