Unity and Unreal are both popular game engines with versatile features that offer an excellent gaming experience. However, they differ in many ways. For example, Unreal offers high-fidelity visuals straight out of the box, whereas Unity’s visuals don't match the standard set by Unreal. Also, Unreal demands high processing power, making it a not-so-suitable choice for mobile game app development. On the contrary, Unity wins the game as you can complete complex projects for low-end devices using this game engine.