The preview images above have been rendered on Unity 3D game engine. This asset contains a Unity 5.1 package
with the same example scenes. Inside the Unity asset, you'll find a .zip file with a package compatible with Unity 4.6 or later, in case you are not developing with Unity 5.
This package contains 54 low-poly models, shared across 5 textures and materials. Source files for Maya are also included, and all models are exported to .fbx and ready to be imported in any other game engine.
Texture maps and additional textures, like a reflection map and a light cookie texture are also included with the fbx files.