Harpoon is a series of realistic air and naval computer wargames based upon Larry Bond's miniatures game of the same name.

Missions range from small missile boat engagements to large deep sea battles, with dozens of vessels and hundreds of aircraft.

The game includes large databases containing many types of real world ships, submarines, aircraft, and land defenses (i.e. air bases and ports).

In 2006, AGSI released Harpoon Advanced Naval Warfare (ANW) which allowed players to compete with human opponents for the first time in the game's history.

Harpoon's interface emphasizes technical accuracy over graphical polish, with simple 2D symbols to simulate a warship's radar display.

The game is extremely comprehensive, although certain elements of naval warfare are not modeled, such as radar ducting, sonar bottom and surface bounce, and COMINT/SIGINT.