Underground Energy Research Facility [LEGACY]
A Roblox experience owned by United States Marine Corps ⁃.
Description (written by the developer; not a statement by this register)
Hidden deep beneath the surface lies a once-classified research complex dedicated to the study of experimental energy systems. After years of operation, the facility was abandoned following a series of catastrophic incidents and containment failures. Explore decaying laboratories, secure sectors, maintenance tunnels, and forgotten control rooms as you uncover the secrets buried within the facility's walls. What began as a breakthrough in energy production became a mystery lost to time.
Last updated by the developer 7 Oct 2026, 14:17 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 21 Oct 2026, 09:15 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).