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Undertale: Terrible Operations

Undertale: Terrible Operations #15575678

58
members (measured 14 Oct 2026, 10:37 UTC)
4 August 2022
created (per Roblox API)
10 August 2026
first measured by this register

Game fan groupsENgamingcommunityfan-group

Description

This is the main group for him ops or whatever you call it.

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

Membership history

Growth

585958.511 August 2026 — 59 members4 October 2026 — 58 members11 August 20264 October 2026
2 measurements spanning 55 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 58–59 and does not start at zero.
Measurement log — every members count we have recorded
Measured (UTC)MembersChange
4 Oct 2026, 18:3158-1
11 Aug 2026, 00:2159first reading

Ownership

Owned by reasonable_whiteman (@PianoSlammer) 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

reasonable_whiteman (@PianoSlammer) — Owner (rank 255)

alpa (@AlpaFR) — Developer (rank 253)

Mopi (@Lord_Omniverse) — Developer (rank 253)

Yianl (@YesIAmNoobLol123) — Developer (rank 253)

@dondontheking — Admin (rank 152)

Aristotle 13333 (@BrahBehindSlaughter) — Tester (rank 100)

Sans_Gaming (@xXRinhoGamerXx) — Tester (rank 100)

@Abdrohmann — Tester (rank 100)

Puffer (@Puffer_Ler) — Member (rank 1)

@Danielerebet — Member (rank 1)

@robb1978 — Member (rank 1)

zinl (@0_eorl) — Member (rank 1)

tyrael2026 (@Tyrael1009) — Member (rank 1)

Chaos (@Ixrcom) — Member (rank 1)

godseeker yharim (@tmodyhar) — Member (rank 1)

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

Rank structure

Owner1
Co-Owner0
Developer5
Admin4
Tester4
Member59
Member45
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.