It is 200 years in the future. The rich have become richer and the poor... well, they’ve become richer too.
But conflicts now have arisen between those who have innie bellybuttons and those who have outies.
The Outies live in domed cities on the surface. The Innies live in holes in the ground. To get at the Outie resources, and just to be pests, the Innies use siege engines like this one to bore through the sides of the domes.
This kit would appeal to lovers of post-acopalyptic sci-fi and retro-future machines.