The choice of the best game engine for creating 3D mobile games depends on various factors, including your specific game's requirements, your team's expertise, and your budget. However, as of my knowledge, Unity is often considered one of the top choices for 3D mobile game development. Unity offers a robust set of tools, a vast asset store, and excellent cross-platform capabilities, making it a popular choice among game developers.

Another strong contender is Unreal Engine, known for its high-quality graphics and realistic physics. Unreal Engine's Blueprints system simplifies game development, and it's a favorite for those aiming to create visually stunning 3D games.

If you still have a confusion in choosing the best game engine for creating a 3D mobile game you can contact Bitdeal, a prominent Game Development Company, can provide valuable insights and assistance in choosing the right game engine for your 3D mobile game project. They specialize in game development and can guide you through the entire process, from concept to deployment. Initially, Bitdeal started their journey as a Cryptocurrency Exchange Development company, and now their team of experts adapted to new technologies and started providing A-Z game development services too, ensuring your mobile game reaches its full potential. So, they're a great option for your game development.