MJ Development Studios #16529171

members (measured 3 Nov 2026, 07:24 UTC)

23 December 2022

created (per Roblox API)

10 August 2026

first measured by this register

Game studiosENmusic gameosu!maniachart creation

Description

Welcome to MJ development studios👋 Want behind the scene and updates? Follow our 🎶: mj . development . studio (remove spaces) MJ's Medium Difficulty Chart 1.0 has been released

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

Membership history

Growth

2 measurements spanning 15 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 15–16 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
26 Sept 2026, 18:00	15	-1
11 Sept 2026, 16:45	16	first reading

Ownership

Owned by Jaivian (@JJdean2011) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Experiences

players in this group’s experiences right now

1,132

lifetime visits across 1 experiences

MJ's Difficulty Chart Obby0 playing now

1,132 visits

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

Members we’ve seen

Jaivian (@JJdean2011) — Owner (rank 255)

Maddy (@Smellyliekyou) — Admin (rank 254)

Maddy (@MadalynOof) — Admin (rank 254)

burntcomet (@Sprinklesina_rainbow) — Beta Tester (rank 253)

Agzon13RBLX (@Agzon13) — Member (rank 1) terminated

abbie (@Xqueen_coffeeX) — Member (rank 1)

itzz_kostantypoliwan (@jacoob2OS_18lat) — Member (rank 1)

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

Rank structure

Owner1

Admin2

Beta Tester2

Member16

Member11

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

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.