Undertale Unstable Timeline #11464654

285

members (measured 17 Oct 2026, 06:31 UTC)

12 July 2021

created (per Roblox API)

10 August 2026

first measured by this register

Description

group lel

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

Membership history

Growth

2 measurements spanning 45 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 285–286 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
25 Sept 2026, 22:48	285	-1
11 Aug 2026, 21:24	286	first reading

Ownership

Owned by FlyingSkullz (@flydream36) 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

30,523

lifetime visits across 3 experiences

Undertale: The Last Universe0 playing now

Undertale Unstable Timeline Donation official0 playing now

MINIGAMES0 playing now

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

Members we’ve seen

FlyingSkullz (@flydream36) — Owner (rank 255)

hyt_dinal (@wawane) — Developer (rank 254)

yora (@DizzyHow) — Developer (rank 254)

BURO (@BUROTAROU) — Member (rank 1)

IIDibsNEO (@VINCENT_WATERPower) — Member (rank 1)

Mirrow (@Patric_Epic) — Member (rank 1)

@xXRomeoSoniXx — Member (rank 1)

@FDGuito — Member (rank 1)

Apolo (@HUGOPROKAWAY3) — Member (rank 1)

Dex (@HoodedVibezz) — Member (rank 1)

MrBiscuit (@MrBiscuit42_0) — Member (rank 1)

@tim12893 — Member (rank 1)

Portalizer (@bendyy63qtty) — Member (rank 1)

@benbenvale — Member (rank 1)

Traffic_EXE (@NoMoreTraffic) — Member (rank 1)

SoulLais_a (@error_sans0101) — Member (rank 1) terminated

Doma (@Doma832012) — Member (rank 1)

BigW (@rogerxie19) — Member (rank 1)

eatata (@etham123gor7) — Member (rank 1)

potentate (@ppotentate) — Member (rank 1)

Cyan (@cyanisagoodcolors) — Member (rank 1)

ChronoLayers_066 (@asenutis) — Member (rank 1)

@Nublize — Member (rank 1)

@foxthedrive — Member (rank 1)

@quixel98 — Member (rank 1)

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

Rank structure

Owner1

Developer2

Testers5

Member286

Member278

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.

Whirlpool Studio#2756366 · 17 shared members

LSPLASH#3049798 · 15 shared members

Chillz Studios#2782840 · 15 shared members

Sans Multiverse & Sans vs Chara#5319738 · 15 shared members

FE Studios#5112430 · 14 shared members

Paradoxum Games#4914494 · 13 shared members

Slap Battles#9950771 · 12 shared members

Lad's Doodle Sphere#5668366 · 12 shared members

Sands Offical Group#8211960 · 12 shared members

Bee Swarm Simulator Club#3982592 · 11 shared members

Weibu Studio#11274913 · 11 shared members

Wiggity.#12836673 · 10 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.