The Steam Engine is a medium-sized, industrial machine with a blocky, isometric design consistent with Factorio's pixel-art style. It features a metallic body with a dark gray base color, accented by lighter gray piping and valves. The top houses a cylindrical boiler with visible steam vents, emitting subtle pixelated steam particles when operational. The front includes a control panel with simple, colored indicators, and the sides have large, rotating gears for mechanical movement. The overall construction appears sturdy and functional, with visible bolts and seams for added detail.