eSim Games LLC is an independent software developer specialized on virtual simulations of the fire control systems of armoured fighting vehicles in a combined arms tactical context. Initial development on Steel Beasts started in 1995. The first game version was quickly adopted by a range of military customers, for which numerous customizations were developed which were combined and released as the now current product line, Steel Beasts Professional.
eSim Games has its headquarters in Mountain View, California, with an additional office in Hannover, Germany. Primary customers are the land forces of Australia, Austria, Denmark, Finland, Spain, Sweden, and The Netherlands, with additional customers in the Americas and Europe.