Petroska Reaserch and Development #32748139

members (measured 15 Aug 2026, 04:05 UTC)

16 July 2023

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 We do not publish numbers we have not measured.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
14 Aug 2026, 16:48	4	first reading

Ownership

Owned by Commander_Dex (@Sgt_dex) as measured.

Members we’ve seen

Commander_Dex (@Sgt_dex) — [CEO] Chief Executive Officer (rank 255)

Commander_Fire (@audironboy) — [COO] Chief Operating Officer (rank 254)

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

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

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488,152

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316,180

Demon Corps [DSRPG2]#5654188 · 2 shared members

154,683

Riot Army#6500764 · 2 shared members

208

The commander family group#7362342 · 2 shared members

MTF Sigma-9#570992187 · 2 shared members

Zero - G Studios#33614234 · 2 shared members

The New Principality of Kronland#13383220 · 2 shared members

{SCP}Secure Contain Protect#14506446 · 2 shared members

Demon Slayer - Moonlit Blade#7180461 · 2 shared members

Demon Slayer - Slayers#32523028 · 2 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.