|| [SCP: Site Atlas] Containment-Site-21 || #32683903

46

members (measured 25 Oct 2026, 20:41 UTC)

5 July 2023

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENSCP FoundationRoleplayHorror

Description

Welcome to SCPF-ATLAS: CONTAINMENT - SITE - 21 Secure. Contain. Protect. [ADMINISTRATOR- STOONSEAN12] Embark on a journey through the foundation, Explore the world. Find what is hiding beyond the island and maybe find others, See what lurks and maybe you will find it...

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

Membership history

Growth

2 measurements spanning 54 days, net -1. 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 46–47 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
4 Oct 2026, 05:51	46	-1
11 Aug 2026, 11:37	47	first reading

Ownership

Owned by @testzinho22 as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Experiences

0

players in this group’s experiences right now

297

lifetime visits across 2 experiences

SCPF: Atlas Corporation [Better Map, Realism]0 playing now

[SCPF: Training Facility]0 playing now

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

Members we’ve seen

@testzinho22 — The Administrator (rank 255)

DapperSkeletonGuy (@TheDoctorOmega) — Site Director (rank 253)

@Kyostx — Test Subjects (rank 1)

Mikey (@i_iMikey) — Test Subjects (rank 1)

@StarFight9 — Test Subjects (rank 1)

@Aronnos5555 — Test Subjects (rank 1)

zedifix (@jahirram567) — Test Subjects (rank 1)

@BoatBoyII — Test Subjects (rank 1)

Andrusca (@andrusca1003) — Test Subjects (rank 1)

Envcoll (@welshong) — Test Subjects (rank 1)

Tara_x (@Tarax_XV) — Test Subjects (rank 1)

AFCS (@Rowe15673) — Test Subjects (rank 1)

Ladiesman217 (@Mr_Build00) — Test Subjects (rank 1)

@Twich_derfolurgg — Test Subjects (rank 1)

desmodafrikingking (@SA37597) — Test Subjects (rank 1)

Bluecatfairy (@nfvajfjv) — Test Subjects (rank 1)

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

Rank structure

The Administrator1

Site Director1

Analytics Access0

05 Commands0

Developer0

Acting Department0

Game Moderator0

The Horizon Initiative0

Security Level 50

Security Level 40

Security Level 30

Security Level 20

Security Level 10

Security Level 00

Foundation Personnel0

Member47

Test Subjects45

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.

SCP | Roleplay Community#5479038 · 12 shared members

Special Containment Procedures Foundation [SCPF]#2760782 · 8 shared members

Paradoxum Games#4914494 · 6 shared members

Quantum Science Inc.#2847031 · 6 shared members

[:] Nova Corporation#4965800 · 6 shared members

Sol's Studio#8509669 · 5 shared members

Thinking Project#1235888 · 5 shared members

Pilot Training Club#2794513 · 5 shared members

Police Roleplay Community#4328109 · 5 shared members

SEA Military#2648601 · 5 shared members

Hapless Studios#5502618 · 5 shared members

SCP:F ~ Special Containment Procedures Foundation#4743750 · 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.