Urho3D
Credits

Urho3D development, contributions and bugfixes by:

Urho3D is greatly inspired by OGRE (http://www.ogre3d.org/) and Horde3D (http://www.horde3d.org/). Additional inspiration & research used:

Urho3D uses the following third-party libraries:

DXT / ETC1 / PVRTC decompression code based on the Squish library and the Oolong Engine.

Jack and mushroom models from the realXtend project. (http://www.realxtend.org)

Ninja model and terrain / smoke / flare / status bar textures from OGRE.

Skybox cubemap from http://www.codemonsters.de.

BlueHighway font from Larabie Fonts.

Anonymous Pro font by Mark Simonson.

NinjaSnowWar sounds by Veli-Pekka Tätilä.