Helicopters are crucial in today’s life. A vast amount of applications prove their range, which are not coverable by other types of aircraft. But they are very complex systems, both, technically and physically. This is one of the reasons why pilot training for helicopters is quite challenging. In the last two decades flight simulators became a supplementary instrument in the educational process of pilots. With flight simulators it is possible to replay uncommon or dangerous situations. In this thesis a simple flight simulator for helicopters will be developed based on rigid body physics. The foundation is a simplified rotor model which omits complex fluid dynamics. This helps to keep the implementation simple and illustrative as well as provide simulation rates at real-time. The modules are implemented within the Unreal Engine in such way, that changing helicopter characteristics is very easy.