Feel the excitement of flying! Digital Combat Simulator, or DCS, is a combat flight simulation game and study sim in which players learn how to operate aircrafts using realistic procedures. DCS World supports a wide variety of combat operations including combat air patrol, dogfighting, airstrikes, close air support, SEAD, and airlifts. Dozens of military airplanes and helicopters are available, spanning eras from World War II through the Cold War into the early 21st century.