This document describes the design of an electromagnetic engine as an alternative power source that does not require fuel. The engine works on the principle of magnetic repulsion between electromagnets and permanent magnets. It aims to reduce emissions by eliminating the need for fuel combustion. Key components include electromagnets, permanent magnets attached to pistons, a controller circuit to power the electromagnets, and a proximity sensor for timing. Design calculations are provided to determine the force generated by the electromagnets on the pistons. The working prototype demonstrates the engine's ability to run solely on electrical power from batteries by repelling magnets on adjacent pistons.