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JKR Studios

JKR Studios #970502

4,246
members (measured 8 Oct 2026, 01:13 UTC)
18 October 2013
created (per Roblox API)
10 August 2026
first measured by this register

Game studiosENgame developmentcommunitytesting

Description

We are JKR Studios, a game development studio and community founded by Jason8622, KelvinBlues1, and RobloxGuy6403 (hence, JKR) in October of 2012. Founded on the ideals of game world interaction built upon community feedback, we are passionate about making games that are fun to play with friends. Check our most notable Experiences! - Pinewood Oil Platform (under the PBOP group) - Cobalt Valley Research Facility (formerly known as the JKR Research Facility) You can also check out other games made by our affiliates! ━━━━━ HOW DO I VISIT CVRF DEV? ━━━━━ You must be a Project Tester or higher rank to visit the CVRF Development Branch. Join the community server to apply as a Project Tester! Check it out to join our game nights, get more frequent announcements and updates, and more! Your account must be 13+ to join.

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

Membership history

Growth

4,2414,2464,243.510 August 2026 — 4,241 members13 August 2026 — 4,242 members14 August 2026 — 4,241 members17 August 2026 — 4,242 members20 August 2026 — 4,243 members20 August 2026 — 4,244 members20 August 2026 — 4,243 members27 August 2026 — 4,244 members4 September 2026 — 4,243 members5 September 2026 — 4,242 members5 September 2026 — 4,241 members8 September 2026 — 4,242 members8 September 2026 — 4,243 members12 September 2026 — 4,242 members14 September 2026 — 4,243 members14 September 2026 — 4,244 members20 September 2026 — 4,245 members24 September 2026 — 4,246 members10 August 202624 September 2026
18 measurements spanning 45 days, net +5. 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 4,240–4,247 and does not start at zero.
Measurement log — every members count we have recorded
Measured (UTC)MembersChange
24 Sept 2026, 04:114,246+1
20 Sept 2026, 00:254,245+1
14 Sept 2026, 16:284,244+1
14 Sept 2026, 02:054,243+1
12 Sept 2026, 15:024,242-1
8 Sept 2026, 16:464,243+1
8 Sept 2026, 06:224,242+1
5 Sept 2026, 23:114,241-1
5 Sept 2026, 00:584,242-1
4 Sept 2026, 06:554,243-1
27 Aug 2026, 03:064,244+1
20 Aug 2026, 19:224,243-1
20 Aug 2026, 11:254,244+1
20 Aug 2026, 01:264,243+1
17 Aug 2026, 19:214,242+1
14 Aug 2026, 07:234,241-1
13 Aug 2026, 15:354,242+1
10 Aug 2026, 13:324,241first reading

Ownership

Owned by @ChromeEight 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
208,427
lifetime visits across 5 experiences

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

Members we’ve seen

@ChromeEight — Director (rank 255)

snibk (@The_Sink) — Head of Development (rank 254)

@Shredder914 — Moderator (rank 252)

nsd (@NSDoppler) — Moderator (rank 252)

@KelvinBlues1 — Project Contributor (rank 3)

gav138 (@NSaturn) — Project Contributor (rank 3)

@lavafactory — Project Contributor (rank 3)

Avalous (@AvalonIndustries) — Project Contributor (rank 3)

Alexis (@iialexidai) — Project Contributor (rank 3) terminated

@Sebastian_Wilson — Project Contributor (rank 3)

gasguru (@gasguru_u) — Project Contributor (rank 3)

bulb (@LightBulbChain) — Project Contributor (rank 3)

@TheDarkElites — Project Contributor (rank 3)

Lyn (@Lynbean) — Project Contributor (rank 3)

@Daywatch — Project Contributor (rank 3)

@CzachuPL — Project Contributor (rank 3)

@Legodude88 — Project Contributor (rank 3)

猫は電撃の記号の尾がいる (@denkishikinoneko) — Project Contributor (rank 3)

@TheCakeChicken — Project Tester (rank 2)

@ahmedspaceboy — Project Tester (rank 2)

Michal (@Mischa123kALT) — Project Tester (rank 2)

AstraX2 (@Astra_X2) — Project Tester (rank 2)

@Expertcoderz — Project Tester (rank 2)

plant (@ItsChedski) — Project Tester (rank 2)

T128 (@outflow_boundary) — Project Tester (rank 2)

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

Rank structure

Director1
Head of Development1
Developer2
Moderator3
Advisor2
Project Contributor24
Project Tester201
Member4,241
Member4,011
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.

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.