It can be a pump or an oil pump of some sort or even some type of generator. It would be a cool game asset for an industrial factory scene. I used Blender to model it and Substance 3D Painter to texture. Only 30,799 vertices or 30,251 faces. Can probably be decimated a bit more to reduce poly count. Let me know what you think in the comments, give me a like, or maybe purchase the model to help support my art.