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-Vault 81-

-Vault 81- #3582252

1
members (measured 12 Oct 2026, 15:56 UTC)
6 November 2017
created (per Roblox API)
10 August 2026
first measured by this register

Game fan groupsENFalloutRoleplayGaming Community

Description

Vault 81 is an underground fallout shelter produced by the Vault-Tec Corporation in an effort to keep the American population safe if a Nuclear War were to happen, or at least that's what Vault-Tec wants you to think. The Vault's actual purpose was to act as an experiment for a developing cure to every known human sickness. Vault 81 is a peculiar Vault, as it has sane and active Dweller, unlike many of it's counterparts. The Vault is located in the New England Commonwealth. Disc: WIP

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 We do not publish numbers we have not measured.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)MembersChange
13 Aug 2026, 07:471first reading

Ownership

Owned by @NavySuperior 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

@NavySuperior — |Overseer| (rank 255)

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

Rank structure

|Overseer|0
|Vault Engineers|0
|Community Administrator|0
|Community Moderator|0
|Heads of Divisions|0
|Medical Personnel0
|Vault Scientist|0
|Vault Security|0
|Teacher|0
|Vault Dweller|0
|Student|0
|Trader|0
Member1
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.