The Concave Wonderland
★★★★★ 4.9 · 344 reviews · SKU MW-2025
263,214,090.00 Altairian Dollars
In production — ships in 3 epochs
About this build
A demonstration showcase at 14,200 km outer diameter with a 2,600 km artificial interior sun and interior ocean covering 78% of inner surface. Includes 23 island settlements, undersea research facilities, and interior-navigation guides. Atmosphere cycles synchronized to interior sun (20-hour day cycle). Geological investment: 33 epochs. Winner of the Magrathea Innovation Showcase Award.
Specifications
| Climate | Arctic Crystalline |
|---|---|
| Coastline Complexity | Chaotic island topology (9.3 factor) |
| Delivery Estimate | Custom timeline (negotiable) |
| Diameter | 15,200 km |
| Star System | Single G-type Star |
| Surface Gravity | 2.3g |
| Warranty Coverage | Perpetual ownership (no expiry) |
Customer reviews
Satisfactory. My crystal cavern world has brilliant formations, though installation took longer than expected. Worth it though.
Skeptical at first—read the technical specs three times. But the genetic modification work here is legitimate. Our resort's signature attraction is now this world's rivers. Stunning.
Magrathea's attention to detail is unmatched. My bespoke moon system includes dormant but realistic volcanoes and gravity wells that create spectacular tidal phenomena. Science and art perfectly blended.
Well done.
Great job.