This is a Forge art of a spaceship bombing an enemy tower. It was made by my friend Uncle Dukie. Doesn't support any type of multiplayer (no spawn points, and no weapons other than a mounted machine gun, a couple of shade turrets, and some vehicles), but the spaceship does have an interior that can be explored (the tower on the other hand is purely aesthetic; none of the buildings are connected in a way that allows travel between them). The spaceship is an original design; it's not meant to imitate anything in particular. Anyway, here are some screenshots: Here's one of the bomb bay: And one of the main corridor down to the bridge: