Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
Modern Nuclear Reactor

Modern Nuclear Reactor #34136679

380
members (measured 2 Sept 2026, 19:32 UTC)
7 April 2024
created (per Roblox API)
10 August 2026
first measured by this register

Game studiosENsimulationengineeringdevelopment

Description

Modern Nuclear Reactor is a community founded by MrSteinfort revolving around modern nuclear simulation. Our development team is currently developing a CANDU simulation, being the ACR-1000. This game is a work in progress. The listed game is shown for donation purposes, you will not be able to join. Join our communications server for development updates & more.

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

Membership history

Growth

37038037510 August 2026 — 370 members12 August 2026 — 371 members18 August 2026 — 372 members20 August 2026 — 374 members21 August 2026 — 375 members23 August 2026 — 376 members25 August 2026 — 377 members27 August 2026 — 378 members28 August 2026 — 379 members28 August 2026 — 378 members29 August 2026 — 379 members30 August 2026 — 380 members10 August 202630 August 2026
12 measurements spanning 20 days, net +10. 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 369–382 and does not start at zero.
Measurement log — every members count we have recorded
Measured (UTC)MembersChange
30 Aug 2026, 15:20380+1
29 Aug 2026, 22:10379+1
28 Aug 2026, 04:10378-1
28 Aug 2026, 00:21379+1
27 Aug 2026, 11:00378+1
25 Aug 2026, 22:42377+1
23 Aug 2026, 09:40376+1
21 Aug 2026, 11:41375+1
20 Aug 2026, 09:00374+2
18 Aug 2026, 01:40372+1
12 Aug 2026, 23:20371+1
10 Aug 2026, 12:15370first reading

Ownership

Owned by @MrSteinfort as measured.

Claimed by user #5450464736 — observed between sweeps, detected 10 Aug 2026, 19:27 UTC

Detection dates bound when a change was seen by this register, not when it happened.

Experiences

0
players in this group’s experiences right now
5,937
lifetime visits across 1 experiences

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

Members we’ve seen

@MrSteinfortOwner (rank 255)

Desired (@DesiredToResign)Department Supervisor (rank 10)

@megamasheensDevelopment Department (rank 9)

@17TCHDevelopment Department (rank 9)

Dusk (@krampuszc)Development Department (rank 9)

RufMix (@RUF1022)Development Department (rank 9)

Ms_Stuffzi (@stuff_today1234B)Development Department (rank 9)

pac (@pacmanstratton)Project Advisor (rank 5)

Matt_14o (@vgfdgadsgbdha)Appreciated Member (rank 4)

Gottie (@GottyXx2)Appreciated Member (rank 4)

VVVF_GTO (@idjjjxkxxxxjx)Tester (rank 3)

ScaniaR730 (@benas11111111)Tester (rank 3)

Their_Oasis (@brucepuppy123)Fan (rank 1)

RRS2 (@Batfynx)Fan (rank 1)

Lanius (@LaniusDaProot)Fan (rank 1)

Cyno (@ArtemUstas)Fan (rank 1)

Enpassant (@rachetuta86)Fan (rank 1)

Patate_Filante (@hygfdbj)Fan (rank 1)

Aqua (@Sinsoxia)Fan (rank 1)

Vaneer (@ProjectVaneerix)Fan (rank 1)

Kanine_Division (@Kanine_Divison)Fan (rank 1)

beans (@FinnB2323)Fan (rank 1)

51O3O28O (@Sylnar)Fan (rank 1)

BrokenSoul (@jannnn13)Fan (rank 1)

Phoenix (@PhoenixFKereik)Fan (rank 1)

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

Rank structure

Owner1
CO. Owner1
Board Of Directors2
Department Supervisor4
Development Department9
Administration Department10
Project Advisor4
Appreciated Member18
Tester5
MNR Supporter18
Member370
Fan366
Gäst:in0

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.