Black Mesa Personnel #12521412

142

members (measured 3 Sept 2026, 12:09 UTC)

8 October 2021

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENHalf-LifeGarry's ModRoleplay

Description

The Black Mesa Research Facility, or B.M.R.F. for short, and colloquially known as Black Mesa is a research complex built over several decommissioned Cold War ICBM launch silos in the 1950’s, which has been converted into a vast civilian research institute for the research of almost every conceivable scientific discipline. The primary site of operations is located in the south-western region of New Mexico in the B.M.R.F. whereas the secondary site is located in Eastern Europe. Funded by the United States Government, Black Mesa has successfully progressed in various scientific fields to make a better future for mankind. Due to the classified nature of any research performed at the Black Mesa Research Facility, not much is shared with the general public.

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

Membership history

Growth

3 measurements spanning 20 days. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 141–142 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
30 Aug 2026, 15:03	142	+1
20 Aug 2026, 20:58	141	-1
10 Aug 2026, 23:34	142	first reading

Ownership

Owned by Zack (@ZackAdvisory) as measured.

Experiences

0

players in this group’s experiences right now

34

lifetime visits across 1 experiences

Black Mesa Research Facility [DEMO]0 playing now

Experiences this group owns, by lifetime visits. Live-player counts are from our last measurement.

Members we’ve seen

Zack (@ZackAdvisory) — [FOUNDER] (rank 255)

epic319 (@zejdka) — [DEVELOPMENT TEAM] (rank 253)

fr67 (@robloxremake6) — [DEVELOPMENT TEAM] (rank 253)

ladder (@LaniusAdder) — [LEVEL-2] (rank 3)

papyrusisthebestnyeh (@M_HAMZA14) — [LEVEL-1] (rank 2)

Official (@LtBuba) — [LEVEL-1] (rank 2)

@DJPOfficial — Awaiting Employment (rank 1)

Max_Payn (@Yhub_01) — Awaiting Employment (rank 1)

@epic318 — Awaiting Employment (rank 1)

@Annephibia2019 — Awaiting Employment (rank 1)

RodneySGA (@username_name222) — Awaiting Employment (rank 1)

SDN (@Chetan_Jaggie) — Awaiting Employment (rank 1)

ConnyZGamez (@ConeHeadZCaptain) — Awaiting Employment (rank 1)

Box (@BoxedRocks) — Awaiting Employment (rank 1)

EldritchTitanite (@AbyssalTitanite) — Awaiting Employment (rank 1)

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

Rank structure

[FOUNDER]1

[CO-FOUNDER]1

[DEVELOPMENT TEAM]6

[ADMINISTRATION]4

[LEVEL-7]1

[LEVEL-6]0

[LEVEL-5]0

[LEVEL-4]0

[LEVEL-3]0

[LEVEL-2]1

[LEVEL-1]11

Member142

Awaiting Employment123

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.

epic318's group#5784805 · 10 shared members

Quantum Science Inc.#2847031 · 9 shared members

Black Mountainside#4583898 · 9 shared members

Innovation Inc.#157764 · 8 shared members

Pilot Training Club#2794513 · 7 shared members

Pinewood Builders#159511 · 6 shared members

SCP | Roleplay Community#5479038 · 6 shared members

Async Research Facility [KV31]#15123360 · 6 shared members

DJPOfficial Inc.#14960210 · 6 shared members

Hazbinn’s Hangout#14303483 · 6 shared members

Golden Dawn Laboratory#15442718 · 6 shared members

Innovation Security#901313 · 5 shared members

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.