Kingdom Coal: Ro-Scale
A Roblox experience owned by Vertex Assembly.
SimulatorENtrainssimulationro-scale
Description (written by the developer; not a statement by this register)
Kingdom Coal is a Ro-Scale game made alone by the creator of Ultimate Rails. This game features newer and higher quality rolling stock, as well as a more dynamic rail layout than previous games. No content from Ultimate Rails games carries over to this as it is a completely separate project. This game has very high detail assets and probably will not run well on mobile devices. Important: There is a slider in game that lets you control your view range. The default is 500 studs and this can be increased to 2000 studs. This game is currently in early access and may have some issues as a result of testing.
Last updated by the developer 27 Jul 2026, 03:44 UTC.
Live players over time
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Players | Change |
|---|---|---|
| 12 Aug 2026, 15:07 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).
Monetization — game passes
Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.
Badge funnel
How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.
Like ratio over time
Growth
| Measured (UTC) | % liked | Change |
|---|---|---|
| 27 Aug 2026, 13:22 | 54 | -4 |
| 17 Aug 2026, 13:21 | 58 | first reading |
Percentage of votes that are likes, at each of our measurements. A falling line is a game losing its crowd’s goodwill.