HardDev Studio #15635437

members (measured 25 Aug 2026, 10:35 UTC)

10 August 2022

created (per Roblox API)

10 August 2026

first measured 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 We do not publish numbers we have not measured.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
15 Aug 2026, 12:37	6	first reading

Ownership

Owned by @JJON55TH as measured.

Members we’ve seen

@JJON55TH — Owner (rank 255)

CaiusMaximusKermagne (@CaiusKernmagne) — Co-Owner (rank 254)

doos_sj (@airportstijn) — Director of Finance (rank 253)

888_k13 (@myshadow1014) — Director of Marketing (rank 251)

R4HDZ (@NotforVexzakakadh) — Customer (rank 242)

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

Rank structure

Owner1

Co-Owner1

Director of Finance1

Director of Operations0

..............0

Director of Marketing1

.............0

..........0

.........0

......0

.....0

...0

..0

Customer2

Member6

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.

RFC [MMA]#34521307 · 4 shared members

127

The US Military 1940s#4545116 · 3 shared members

1,419,025

ᅠ Senatus Populusque Romanus ᅠ#4165387 · 3 shared members

52,427

Blue Lock Rivals Unofficial Fans#34671275 · 2 shared members

32,541,013

Scriptbloxian Studios#4705120 · 2 shared members

30,059,164

Wild Atelier#7947655 · 2 shared members

7,701,679

Foxzie#3955051 · 2 shared members

7,035,587

Jandel's Road Trip#33097934 · 2 shared members

6,951,460

Driving Empire by Voldex#4999963 · 2 shared members

4,941,584

Play! Studios#7165738 · 2 shared members

4,303,384

San Diego Border Community#177149320 · 2 shared members

3,670,860

Shark Fin Studios LLC#3751488 · 2 shared members

3,023,487

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.