{Undertale} #12574212

205

members (measured 26 Aug 2026, 11:07 UTC)

12 October 2021

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENgamingundertalefandom

Description

[* welcome to the underground. (er er er er) ] * Group Icon by GreenLizard307.

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

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
11 Aug 2026, 05:52	205	first reading

Ownership

Owned by sanstheskeleton (@ILazyBoneUT) as measured.

Members we’ve seen

sanstheskeleton (@ILazyBoneUT) — * sans. (rank 255) terminated

sans (@sans_sk3Iet0n) — * Friends. (rank 9)

toast stealer (@tahakenannn) — * Friends. (rank 9)

Coolnana (@iEnesKaya) — * Friends. (rank 9)

Mazorian (@WAFGAFFGO) — [* other monsters at underground.] (rank 6)

smiley (@LeSmileyTrashbag) — [* other monsters at underground.] (rank 6)

sakura (@DreamGirlSRB) — [* fallen humans.] (rank 1)

Cosplayer_Aftons (@yellowzizzle25) — [* fallen humans.] (rank 1)

Ch0ppest (@gamerminer412217) — [* fallen humans.] (rank 1)

Godforbid (@Godfor_bid) — [* fallen humans.] (rank 1)

super creek (@real_inksanslol) — [* fallen humans.] (rank 1)

Kollie (@LoneFireStarter) — [* fallen humans.] (rank 1)

Stormtrooper (@STR0NGF1SH9I) — [* fallen humans.] (rank 1)

IceDessert_Glaceon (@ritaquila2012) — [* fallen humans.] (rank 1)

JohnDShenanigans (@GodzillaSunshin) — [* fallen humans.] (rank 1)

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

Rank structure

* sans.1

* PAPYRUS!0

* Muffet.1

* Asgore.0

* Undyne!1

* Toriel.0

* Alphys..!1

* Flowey the flower!0

* Grillby.1

[* Frisk.! ]2

* Chara =)1

<------------------------------------------->0

* Friends.19

* royal guards1

[* other monsters at underground.]9

[* moderator.]3

[banned humans.]0

Member205

[* fallen humans.]165

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.

LSPLASH#3049798 · 9 shared members

23,783,856

The Flamingo Fan Club#3336691 · 8 shared members

9,877,115

Catalog Avatar Creator#15102943 · 7 shared members

40,626,651

COOL DUDES ONLY!!!!#7199853 · 7 shared members

3,884

Bee Swarm Simulator Club#3982592 · 5 shared members

18,209,398

Lyte Interactive#5449496 · 5 shared members

1,225,551

Tori's Cult#6470553 · 5 shared members

160

Quataun#12121240 · 4 shared members

17,686,686

Av’s Apparel#9291565 · 4 shared members

223

BIG Games Pets#3959677 · 3 shared members

29,203,081

Yielding Arts#12013007 · 3 shared members

24,713,241

Chillz Studios#2782840 · 3 shared members

18,408,300

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.