COIN (short for COunterINsurgency) is a series of multiplayer asymmetric strategy board wargames simulating historic insurgency and counter-insurgency conflicts and irregular warfares throughout the world.
The series has been noted for its innovative and dynamic gameplay, compared to more traditional hex-and-counter two-player wargames.
[1] COIN games simulate past and ongoing historical insurgencies and counter-insurgencies with up to four players controlling a different faction, each with unique play styles and winning conditions.
For example, in Andean Abyss, players draw from a deck of event cards to decide the order in which factions take turns.
[4] In addition to event cards, the games use mechanics like area control and opportunity cost to represent factors such as winning hearts and minds, lines of communication, and government legitimacy.