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@mrck_cz

@mrck_cz #3062151906

14 November 2021
account created (per Roblox API)
19 Sept 2026, 18:55
last measured (UTC)

Username record

@mrck_cz — observed 19 September 2026

Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.

Groups owned (as measured)

PixelMart.#433091808
19
randoms games group#672506146
7
Theater Games Productions#851080257
2
Super Zoo Family#141804673
2
The Orphanage Foundation#285271524
2
ObbyBlox.#805122159
1

Open data

Download this user’s observed record: username history (CSV) · record (JSON)

Also a member of

Virtuality World#3606245 · Member
10,223,423
Building & RolePlaying Fan Experience Studios#878864398 · Member
5,484,450
The MonkeyMan Fan Club#14765325 · Member
4,553,380
Typical Games#2649054 · Member
4,304,985
Pilot Training Club#2794513 · Trainers
3,861,476
XiaoChen Simulator#13780521 · Fan
3,000,785
The Shrimp Game#12422265 · Player
2,652,485
Kohaú#4731484 · Junior Hibachi Chef
2,641,801
Ronalds#33883891 · Restaurant Manager
2,500,400
Tsunami Disaster#34127367 · Builders
2,395,817
Washiez#10261023 · Assistant Manager
2,354,968
Boba®#3174578 · Junior Barista
2,193,780
Kavra's Kingdom#4561896 · Recruit
1,731,586
Virtual Valley Games#1241210 · Titanic Captain
1,704,877
Kypher Studios#3797636 · Member
1,588,724
Nerdy Experiences#33936621 · Member
1,528,392
BurgerBlox Fast Food#8927586 · Valued Customer
1,501,831
Flawn Salon#33267151 · Staff In Training
1,427,988
Hygiene#4234871 · [8] Dentist Supervisor
1,412,446
Asylum Life Community#5819563 · Patient
1,337,761
Coffee Lovers Community#3430014 · Trainee
1,314,599
Stuart Games#34562627 · Member
1,247,987
[Dinosaur World]#4409241 · Supporter
1,155,325
[CUSA] United States MiIitary#4219097 · [E2] Private
1,149,692
SiIicones#5127121 · 🧸 Orphan
1,149,643
RoMart Corporation#13874159 · Junior Store Colleague
1,097,626
Whoops Works 2#243789863 · Member
921,997
Freshco Shopping.#33519588 · Store Customer
911,478
The Feather Family 🕊️#4336588 · Family
847,080
CineBlox Productions#5101119 · Theater Crew
844,330
Outcast Arts#6364161 · 🌟Fan🌟
844,237
Pablo's#2832203 · Intern
823,791
TJim's Studio#33768122 · Member
805,144
Titanic Ship Builders!#2978092 · Builder
802,767
La Sainte Divinité#11255699 · 🪓 Deranged Patient
707,640
Divine Sister#5008654 · 🌅 Divinor
646,778
[TCU] The Computer Union#8513762 · Civilian
642,048
United States Secret Serviceᅠᅠᅠ#5856978 · Agent In Training
633,390
Aquatic Pool#6219433 · Vice Chairperson
607,744
Lac Aux Cerises#16498801 · 🌺 Student
550,451
Freshly Shopping UK#11582289 · Management Intern
504,478
KFC | Roblox#35049530 · Trainee
461,713
Airport Simulator Community#35719109 · Member
427,601
Bloxco Stores#14334637 · Trainee
407,853
Watch Your Step Studios#36019997 · Member
405,592
Yellowstone Unleashed#11010141 · Member
401,607
The Glorious Robot Army#11872496 · [6] TERMINATOR
401,450
Twisted Official#4812298 · Fan
378,284
Slanted Games#11885165 · Pro Players
377,833
Nighthawk Cafe#12523290 · Trainee
364,720
-ORA-#8565769 · | 1 CP | Mini Dancer
341,527
Arctic's Kingdom#11592051 · Chef
324,181
vuvies#35232026 · Amazing People
312,574
Tomaz Developments#10628543 · Player
291,493
DTI Free Farming#9306899 · Model
284,866
[TRCU] The Glorious Robot Army#35956498 · [1] Troop
251,747
Jacys Studios ROBLOX#5288558 · Member
246,010
Auranthia#11005492 · 📖 Enlisted Orphan
219,880
Kpop Demon Hunterss#46101418 · gril regular
209,516
Blaqk Magic Blue#32847485 · Member
183,610
[GGRP] Grenadier Guards Roleplay#12107574 · Recruit
172,229
Water Park World#5114552 · Member
159,376
Chesapeake Studios#17005184 · Fan
147,801
Encore Theatre Group#34071942 · Member
144,469
basic pro games#588607738 · Guys
129,245
[TRCU] The Revolutionary Computer Union#336090209 · Civilian
127,019
C.L. StudioWorks#839844396 · Member
125,533
Afton Robotics#2969132 · Night Guards
118,196
[-] Royal Guards#32411430 · Corporal
108,183
Ryanairᅠ ᅠ#983479158 · Priority Passenger
90,476
Projеct Discontinuеd#33426357 · Studio Fan
73,362
Bean's Can#7507335 · Member
61,433
VR Community#5688275 · VR Supporters
53,924
TUI Airways | Roblox.#35238318 · Passenger
51,043
Google Playstore#17214910 · Member
47,578
Seattle Grace Hospital#2586305 · Patient
41,651
charmlet#263312160 · charms
38,504
ROBLOX History Museum#3255934 · C1 | Reserve Tour Guide
34,854
Premier Corps#6057318 · Militaire du Rang
31,401
Union's Laboratory#33216408 · [0] Intern
30,436
THE SOCIETY OF QUACKITY#5240691 · Member
29,734
Impеratorskaya Armiyaᅠᅠ#7528791 · Rekrut
28,688
Wayfresh#651145467 · Trainee
23,002
Whitehill Group#5150453 · Customer
19,527
Guest#303 · Guest Fan
16,556
Jurassic World Rebirth Official#36098034 · Member
14,948
Train Mania Drivers#15509584 · [TD] Trainee Drivers
12,710
Direct Retail Solutions#12734419 · Fan
9,477
「WAVE LABELS」#13785356 · Fan
8,669
Unfairbird Games#7087115 · [🎉] Member
7,876
clawsplay central#751074321 · ⋆ Rottweilers
7,743
Toni Projects#9495390 · Madness Members
5,479
Starbucks | RBLX LTB#371984315 · Junior Supervisor
5,009
Pot Brigade's Studio#9868786 · Players
3,159
The Lemitsian Studio#35607823 · Lemitman
2,278
Affogiato#34995782 · Affogiato Customer
2,104
L.S. Retail Store || UK#34363380 · NR | L.S. Normal Customer
1,045
Pecheº#35732754 · Trainee
931
Kekoui Cafe#34078624 · Experienced Player
607
Mug Rebellion Group#668025160 · Rebellion Member
497

Membership and rank as measured from this user’s public group list.