Undertale Boss Battles #2903819

4,467

members (measured 18 Oct 2026, 14:51 UTC)

2 August 2016

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENUndertaleFan GameRoleplay

Description

The past isn't coming back and it never will so join the new game i'm making instead!: https://www.roblox.com/groups/3462361/Undertale-Online#!/about

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

Membership history

Growth

3 measurements spanning 51 days, net -2. 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 4,467–4,469 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
30 Sept 2026, 11:50	4,467	-1
15 Sept 2026, 10:50	4,468	-1
10 Aug 2026, 11:48	4,469	first reading

Ownership

Owned by @Oruks as measured.

Claimed by user #15754918 — observed between sweeps, detected 10 Aug 2026, 13:20 UTC

Detection dates bound when a change was seen by this register, not when it happened.

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

5,001

lifetime visits across 2 experiences

MTT Resort0 playing now

Undertale Boss Battles(Somewhat Fixed)0 playing now

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

Members we’ve seen

@Oruks — Founder (rank 255)

@Myrtime — Head Admin (rank 254)

saya (@Sayaphic) — Event Guy (rank 90)

Peni (@DeoxsyiVee) — Veteran (rank 80)

turtloid (@turtle0216) — Veteran (rank 80)

Kanra (@WeezySaga) — Veteran (rank 80)

@RebornAsrielFan — Veteran (rank 80)

Just_Soulfull (@SoulfullFunkey) — Veteran (rank 80)

Zyphyus (@VaniCapri) — Veteran (rank 80)

Captain (@CaptainNolyx) — Contributor (rank 10)

azeltix (@Cianyan) — Determined Soul (rank 3)

snusk (@petloverz) — Noticed Soul (rank 2)

@0617fire — Noticed Soul (rank 2)

Willow (@Chumbbles) — Soul (rank 1)

Void (@VoidDev079) — Soul (rank 1)

@MysteriousStarPiston — Soul (rank 1)

Bee (@RadBeex) — Soul (rank 1)

@emekat — Soul (rank 1)

selkie (@SomaSeiko) — Soul (rank 1)

@KamaDoggo — Soul (rank 1) terminated

@Ernothegamer — Soul (rank 1)

FrankieIsVibe (@JimmyRBonez_yt) — Soul (rank 1)

Cele (@AstraParfait) — Soul (rank 1)

SolZ (@SuperKingfighterkid) — Soul (rank 1)

saintmartial (@kaisermartial) — Soul (rank 1)

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

Rank structure

Founder1

Head Admin1

Admin1

Event Guy1

Veteran29

Contributor3

Character0

[Event Champion]0

Determined Soul3

Noticed Soul65

Member4,469

Soul4,366

Guest0

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

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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.