![The Underground [Discontinued]](https://tr.rbxcdn.com/180DAY-ca2f13758e911a422af6a7ead9a2dc3a/256/256/Image/Png/noFilter)
The Underground [Discontinued]
A Roblox experience owned by Black Plasma Developer Group.
SimulatorENfacility managementsabotagebadge earning
Description (written by the developer; not a statement by this register)
Welcome to The Underground, Look after the Delta Reactor Project and explore the facility, earn Badges, protect the facility from intruders or even destroy it for yourself! Visitors are "always" welcome to The Underground! Please Note; -Please, if possible play this Experience at a graphics level of 8 or over! -This game's development has been stopped until further notice. Credits; T45681 - Lead Developer (CEO) Purple_Creativity - Loadout Givers BPDev, Junior Experience Testing Team+ - Experience Testing and Recommendations Plus any others that may require credit here.
Last updated by the developer 23 Jun 2025, 06:16 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 We do not publish numbers we have not measured.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, 05:33 | 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.