Business war gaming or business wargaming is an adaptation of the art of simulating moves and counter-moves in a commercial setting. Unlike military war games, or fantasy war games which can be set hundreds of years in the past, business war games are usually set in the present and are a relatively recent development, but they are growing rapidly.[1]

The rationale for running a business war game is that it is a tool of particular value when the competitive environment is undergoing a process of change, as it allows decision makers to consider proactively how different players can react to the change, and to each other.