RBWR | Development #16641787

38

members (measured 13 Oct 2026, 07:32 UTC)

30 December 2022

created (per Roblox API)

10 August 2026

first measured by this register

Game studiosENgame developmentsimulationscience education

Description

>> This group is invite only. << The RBWR Development Team is dedicated to developing somewhat realistic nuclear reactor simulation games that push the boundaries of what’s possible on the Roblox platform. Our focus is on delivering accurate, detailed, and engaging experiences that appeal to players who are passionate about science, engineering, and immersive gameplay.

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

Membership history

Growth

5 measurements spanning 63 days, net +4. 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 32–42 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
12 Oct 2026, 19:18	38	-1
28 Sept 2026, 06:47	39	-2
19 Sept 2026, 18:57	41	+8
22 Aug 2026, 12:19	33	-1
10 Aug 2026, 17:12	34	first reading

Ownership

Owned by @DelfinoDelphis 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

290

lifetime visits across 1 experiences

Server Quick Join0 playing now

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

Members we’ve seen

@DelfinoDelphis — Delfino (rank 255)

@LOUIEisKitted — Community Director (rank 21)

Tooken (@TookenDev) — Department Head (rank 20)

Ervy (@3rvyy) — RBWR (rank 17)

DieselFox (@DieselElectricMotive) — RBWR (rank 17)

shayne (@shayner32) — RBWR (rank 17)

Vaneer (@ProjectVaneerix) — RPWR (rank 16)

Nate (@ReaperNxte) — Brzegowa (rank 11)

Liam (@LiamK621) — Brzegowa (rank 11)

gor (@gor0470) — Brzegowa (rank 11)

Desired (@DesiredToResign) — Contributor (rank 8)

@Fermium_Gaming — Quality Assurance Team (rank 5)

RufMix (@RUF1022) — Quality Assurance Team (rank 5)

Brexlo (@Killergeng13) — Quality Assurance Team (rank 5)

@CrazyMinecrafter99 — Quality Assurance Team (rank 5)

Joji (@jooj_987) — Under Review (rank 1)

cars (@Cars989) — Project Lead (rank 1)

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

Rank structure

Delfino1

Community Director1

Department Head1

RBWR9

RPWR3

Fusion3

RBWR/RPWR0

RPWR/Fusion0

RBWR/Fusion0

Brzegowa10

Fusion/RBWR/RPWR0

Sub1

Contributor8

Probationary Period0

Quality Assurance Team15

Invitation Tester0

Play Access0

Technical Team0

Member34

Under Review0

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.

RBWR Simulation Community#16332057 · 17 shared members

Pilot Training Club#2794513 · 10 shared members

Stepford County Railway#3620943 · 8 shared members

Pinewood Builders#159511 · 7 shared members

Innovation Inc.#157764 · 7 shared members

Quantum Science Inc.#2847031 · 7 shared members

Plasma Inc.#4192306 · 7 shared members

Innovation Security#901313 · 6 shared members

Brzegowa Hydroelectric#33318007 · 6 shared members

Car Crushers Community#2726951 · 5 shared members

Special Containment Procedures Foundation [SCPF]#2760782 · 5 shared members

Pinewood Emergency Team#2593707 · 5 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.