Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
ummm backrooms

ummm backrooms #460679583

31
members (measured 29 Sept 2026, 23:57 UTC)
11 April 2026
created (per Roblox API)
10 August 2026
first measured by this register

Membership history

Growth

283129.510 August 2026 — 28 members12 August 2026 — 30 members20 August 2026 — 31 members10 August 202620 August 2026
3 measurements spanning 10 days, net +3. 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 28–31 and does not start at zero.
Measurement log — every members count we have recorded
Measured (UTC)MembersChange
20 Aug 2026, 13:5031+1
12 Aug 2026, 05:3330+2
10 Aug 2026, 12:4128first reading

Ownership

Owned by astro (@AstronomyPenguin) as measured.

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

Members we’ve seen

astro (@AstronomyPenguin) — Owner (rank 255)

Joe (@Joe_5568) — Lead Developer (rank 210)

@SudoSeal — Lead Developer (rank 210)

@Amyconi — UGC (rank 100)

Asp (@Asprekt) — Member (rank 1)

@CodeVyrtix — Member (rank 1)

AntZero (@AntAnt329) — Member (rank 1)

ArrozConLecheXD (@RiceWithMilkXD) — Member (rank 1)

Test_36 (@thinkmattj) — Member (rank 1)

Cottoncandydan (@Killer_KlownsShorty) — Member (rank 1)

Beta (@redsonya44_XD) — Member (rank 1)

@Guard_12s — Member (rank 1)

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

Rank structure

Owner1
Lead Developer3
UGC1
Member31
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.