Vault 21 #4029957

1

members (measured 10 Aug 2026, 20:43 UTC)

7 April 2018

created (per Roblox API)

10 August 2026

first measured by this register

Description

Vault 21 is a Vault-Tec vault that was once hidden under Las Vegas, Nevada. It has since been converted into a hotel/casino and acts as one of many sources of income for Mr. House and his young New Vegas empire.

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 We do not publish numbers we have not measured.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
10 Aug 2026, 20:43	1	first reading

Ownership

Owned by @BakylsAlt as measured.

Members we’ve seen

@BakylsAlt — Owner (rank 255)

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

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

Kingdom of Prussiaᅠᅠᅠᅠ#3985494 · 1 shared members

-[DD]- Diamond Dogs#2709533 · 1 shared members

Diamond Dogs#2803177 · 1 shared members

United Nations Space Ƈommand#3903670 · 1 shared members

-[GoT]- Game of Thrones #3109239 · 1 shared members

The Robloxian Bears!#2667339 · 1 shared members

The Greek City State Of Athens ㅤ#3065353 · 1 shared members

Freddy Fazbear's Pizza [Revised]#1207963 · 1 shared members

-[DD]- Diamond Dogs ㅤ#3171851 · 1 shared members

The British Empire#2687094 · 1 shared members

Starbucks Cafe℗#2635670 · 1 shared members

SCP Foundation Roleplaying Group#2686098 · 1 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.