John Tiller Software develops computer wargames for both commercial and military customers. Over the years, John Tiller Software has developed over 70 commercial wargames and successfully performed over a dozen research and development contracts for the Air Force and Navy. Wargames developed by John Tiller Software have received many awards including Wargame of the Year from industry media on multiple occassions. In military education, over 21,000 officers of the United States Air Force have used John Tiller Software's Modern Air Power in the Air University at Maxwell Air Force Base. Wargames developed by John Tiller Software are known for both their user-friendliness and accuracy. They cover the range of military conflict from the time of the musket and pike to present day and the future.