Aerial view of a colossal, hyper-dense futuristic megacity with a mile-tall pyramid, rivers, bridges, and endless buildings.

A colossal, hyper-dense megacity covering all of Billings and far beyond, built against the iconic sandstone rims, which rise like cliffs behind endless layers of towers. Overpopulation is extreme—over 100 million residents, with the densest districts reaching an impossible 4 million people per square mile, forming a chaotic maze of stacked housing, bridges, skywalks, and shadowed alleys. The Yellowstone River cuts directly through the center of the city, widening into a massive, irregular, naturally shaped lake, its jagged shoreline surrounded by overcrowded waterfront slums, neon piers, and towering megastructures rising from the water’s edge. Bridges, pipelines, and rail lines crisscross above the turbulent river, forming a web of steel. Dominating the skyline is a mile-tall pyramid with a four-mile-wide base, a monumental industrial monolith covered with lights, vents, platforms, and construction scaffolding. It looms above the city like a dark artificial mountain, its peak disappearing into polluted haze. Every street is jammed with foot traffic, ground vehicles, smoke, and tension—no flying cars, only choked highways and overcrowded walkways. AI worker robots march through the streets, ignored or despised. The horizon shows nothing but infinite urban sprawl fading into smog, a city so large it erases the land around it. See more