The Concave Wonderland
★★★★☆ 4.4 · 324 reviews · SKU MW-76648
837,749,243.00 GBP
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 | Archipelago intensive (4.1 factor) |
| Delivery Estimate | 8-10 days (premium handling) |
| Diameter | 21,844 km |
| Star System | Binary F & K-class |
| Surface Gravity | 0.91g |
| Warranty Coverage | 1-year all-systems coverage |
Customer reviews
Absolutely thrilled. My methane seas moon arrived with perfectly-calibrated hydrocarbon cycles. The scientific instrumentation integration was seamless. Magrathea's technical support answered every question.
My hollow demonstration planet arrived perfectly. The interior cavern system is lit with bioluminescent crystalline formations that shift color with the seasons. It's become the centerpiece of my collection.
Our honeymoon destination is now genuinely unvisitable without scuba certification. The phosphorescent plankton blooms happen exactly when promised. Magrathea truly understands marine ecosystems.
Perfect isolation for testing wind and solar installations at scale. Magrathea's climate stability makes this an ideal R&D environment.
The world functions beautifully, but requires more technical oversight than we budgeted. Training investment was necessary but worthwhile.