What is Urho3D engine?
Urho3D is a MIT licensed open-source lightweight, cross-platform 2D and 3D game engine implemented in C++. 

The name "Urho" means "hero" in Finnish.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

What is Urho3D engine?

### Response:

Urho3D is a MIT licensed open-source lightweight, cross-platform 2D and 3D game engine implemented in C++. 

The name "Urho" means "hero" in Finnish.
