Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
Underground HQ

Underground HQ #8852679

39
members (measured 12 Oct 2026, 23:15 UTC)
28 December 2020
created (per Roblox API)
10 August 2026
first measured by this register

Game studiosENgaming communityprivate groupsocial hub

Description

The Underground Official Group Holder: UndergroundGGs Founders: yCyanx, Vyph, Rentaliated, Jrznxyy

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

Membership history

Growth

394039.513 August 2026 — 40 members20 September 2026 — 39 members13 August 202620 September 2026
2 measurements spanning 38 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 39–40 and does not start at zero.
Measurement log — every members count we have recorded
Measured (UTC)MembersChange
20 Sept 2026, 08:2239-1
13 Aug 2026, 00:3440first reading

Ownership

Owned by yCyanx (@UndergroundGGs) 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

yCyanx (@UndergroundGGs) — Founder (rank 255)

@Flonza1 — Robux Claimed (rank 2)

Poi (@48k_james) — Robux Claimed (rank 2)

@Yarikzlol — Underground (rank 1)

@MujjuA — Underground (rank 1)

Cheeto (@HazedCheeto) — Underground (rank 1)

@kittyiscute4u — Underground (rank 1)

NubiE (@Nub_SZN) — Underground (rank 1)

suni (@Nxx_on) — Underground (rank 1)

PukaLewakanawa (@z_y1he) — Underground (rank 1)

leavemeinseoul (@yjcool90) — Underground (rank 1)

YTBryWu (@BryWuGaming) — Underground (rank 1)

@YSLVex — Underground (rank 1)

VBR (@ImagineDyingRnLMAO) — Underground (rank 1)

pablo7 (@PabloRCruz) — Underground (rank 1)

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

Rank structure

Founder1
Owner's0
Robux Claimed6
Member40
Underground33
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.