The Inverse Sphere
★★★★☆ 3.8 · 2918 reviews · SKU MW-73290
820,488,697.00 Altairian Dollars
In production — ships in 3 epochs
About this build
A topological impossibility made real through Magrathean engineering. The interior resembles an exterior; the exterior resembles an interior. Navigation requires philosophical training.
Specifications
| Climate | Perpetual Spring Temperate |
|---|---|
| Coastline Complexity | Moderate fractal (2.4 factor) |
| Delivery Estimate | Custom timeline (negotiable) |
| Diameter | 18,600 km |
| Star System | Isolated Interstellar Object |
| Surface Gravity | 1.0g |
| Warranty Coverage | 1-year all-systems coverage |
Customer reviews
The hollow planet option was the best choice I ever made. Exploring the interior caverns with their crystal formations is like being inside a geode the size of a world.
The coastline is adequate but honestly not dramatically better than budget alternatives I could have purchased. For three times the cost, I expected revolutionary craftsmanship, not just good work.
My world functions as advertised with adequate coastlines and reasonable gravity well. It's not bad, but it also isn't the magnificent specimen you'd expect at this price point.
The sentient-moon system is intelligent but opinionated. We clash philosophically more than I'd like, but it's growing on me.