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Black Dolphin prison

Black Dolphin prison #12348721

92
members (measured 22 Aug 2026, 08:40 UTC)
22 September 2021
created (per Roblox API)
10 August 2026
first measured by this register

Game studiosENprison simulationhigh-securityroleplay

Description

ⓘ The high-security Black Dolphin prison houses the country's most brutal criminals including serial killers, cannibals and t∃rorrists Inmates are kept isolated in cells that have a set of three steel doors. For 90 minutes a day, they exercise in a large cage; during this time, cells are searched for contraband or illegal items.

Written by the group; not a statement by this register.

Membership history

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 We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)MembersChange
22 Aug 2026, 08:3992first reading

Ownership

Owned by @CimetJ as measured.

Members we’ve seen

@CimetJPrison warden (rank 255) terminated

TimeForRevenge (@DarknessControll)Inmates (rank 1) terminated

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Prison warden1
Government officials1
Night guard2
Guards4
Super Criminals6
Member92
Inmates78
Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.