CryENGINE is recommended for experienced game developers and studios that aim to produce high-end, visually impressive games and have the resources to invest in powerful hardware and learning the engine's more complex systems. It's also suitable for projects that demand advanced rendering and graphics capabilities, such as first-person shooters or open-world exploration games.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Grit Game Engine - The Grit Game Engine is an MIT-Licensed Open Source Game Engine that is highly scriptable via Lua.
Unity - The multiplatform game creation tools for everyone.
Unigine - Unigine Engine is a proprietary cross-platform middleware, developed by Unigine Corp.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Lumix Engine - Open source 3D game designer and engine written in C++.