Urho3D - Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released...
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
ApertusVR - VR Game Engine
Unity - The multiplatform game creation tools for everyone.
Coppercube - CopperCube is a 3D authoring engine designed for video games.
Godot Engine - Feature-packed 2D and 3D open source game engine.