This is a mechanical 3D marble run puzzle for puzzle builders and marble run fans used as a hands-on build, display piece, and moving city model to solve the need for an interactive engineering-style hobby project.
Source: https://www.robotimeonline.com/products/rokr-the-future-city-marble-run-mechanical-3d-puzzle-mrs02s

| Variant | Price | Availability |
|---|---|---|
| The Future City | 64.99 USD | In Stock |
| The Last City | 64.99 USD | In Stock |
| The Last City+The Future City | 119.99 USD | In Stock |
| 2xThe Last City + 2xThe Future City | 229.99 USD | In Stock |
How long does it take to assemble?
The product description lists an estimated 90-minute assembly. The parts use an interlocking insertion design with numbered wooden pieces and visual instructions.
Does it move after assembly?
Yes. After assembly, the marble run uses a lift to power cyclical marble running through the city module.
Does it have lights?
Yes. Touching the inductive brass switch starts the marble motion and dynamic lighting.
Is the lift included?
Yes. Each package contains 1 city module and 1 marble lift.
Can I expand it with other modules?
Yes. Multiple city modules can be combined for extended play, but other marble runs and lift modules must be purchased separately.
How is it powered?
It is USB powered, and the product notes say you need to prepare 1 Type-C power cable by yourself.