Open-source, cross-platform 2D and 3D game engine built in C++
Why do you think that https://github.com/urho3d/urho3d is a good alternative to U3D
Open-source, cross-platform 2D and 3D game engine built in C++
Why do you think that https://github.com/urho3d/urho3d is a good alternative to U3D