Low poly models of refineries, factories and feed plants with lights and smoke. Also contains 1 model of each one; truck(there are 3 variations with only difference being color), forklift(there are two forklifts in the scene, orange one is just smaller), industrial light, road cone, construction column, road block, fire extinguisher, barrel, crate.
If you import as obj and look check the materials there are lights on trucks, industrial lights, high chimneys, some factories, forklifts. Feel free to play with them. Especially industrial lights have the biggest effect. Also beware that lights as much as this can increase render times.
You can separate all the objects and use them individually.
* The zip file that is provided has both the .obj and .blend file and has .mtl for the materials.
Materials are done in Cycles Render. You can import the model and materials to Unity by just drag and drop.