The Sudden Strike series is a collection of real-time tactics (RTT) computer games set in World War II. The player selects a faction (e.g. Soviets, Germans, or Allied forces) and gains control of many varied units such as infantry, tanks and artillery. The games focus primarily on tactics, eschewing traditional real-time strategy resource gathering and base development. The series is developed by Fireglow of Cyprus and published by CDV software of Germany.