BLACKSITE: Hollow
A Roblox experience owned by PYKTIS Institution of Research.
HorrorENSCP FoundationHorrorMystery
Description (written by the developer; not a statement by this register)
𝙱𝙻𝙰𝙲𝙺𝚂𝙸𝚃𝙴 𝙷𝙾𝙻𝙻𝙾𝚆 30 miles southwest of Mt. McKinley. Blacksite Hollow is a federally funded facility operating under the guise of wilderness preservation. It operates under the jurisdiction of a secretive national research organization with people drawn from the highest ranks of military, medical, and scientific institutions. The facility is a remote federal installation dedicated to identifying, containing, and analyzing anomalous phenomena that are deemed a threat to national security. It specializes in securing anomalous entities, artifacts, and biological specimens.
Last updated by the developer 7 Feb 2026, 01:30 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 4 Sept 2026, 08:50 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).