CryEngine - CryEngine, created by Crytek is a fully featured, professional level game engine used by some well-known game development companies. Best of all, it’s open-source and completely free to use! CryEngine supports multiple platforms and can be used to create games for Windows PC, Xbox One, PlayStation 4, and even Oculus Rift VR. Features Include: DirectX 12 Support Real-Time Dynamic Water Caustics 3D HDR Lens Flares Efficient Anti-Aliasing Audio Controls Editor True Multi-platform Support Procedural Motion-Warping High-End IK Solutions Parametric Skeletal Animation Multi-Layer Navigation Mesh Advanced AI System Data-Driven thread management Crytek also maintains a large online marketplace that houses hundreds of free and paid for game assets that can be downloaded and used within CryEngine. Overall, CryEngine is a professional tool used by a large amount of AAA and Indie developers. CryEngine offers features that support the creation of immersive and lifelike games.