Mafioso @greenmonsterjr30 #87901828
29 June 2015
account created (per Roblox API)
21 Sept 2026, 09:04
last measured (UTC)
Username record
@greenmonsterjr30 — observed 21 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)
Open data
Download this user’s observed record: username history (CSV) · record (JSON)
Also a member of
Scriptbloxian Studios#4705120 · Legend
30,023,262Grandma's Favourite Games#6042520 · Members
12,737,824Shiny Pixels#9152522 · Pixel
9,727,766BlushCrunch Studio#14576965 · Member
9,580,531Badass Experiences#9825692 · Member
9,036,740Wild Atelier#7947655 · Member
8,963,786Car Crushers Community#2726951 · Skilled Crusher
8,649,198KizmoTek Studio#3115970 · Community Member
7,668,069Low Effort Studios.#16403616 · Yeeter
7,388,779Roblox High School: Fan Club#1127093 · New Fan (Unranked)
7,012,286Paradoxum Games#4914494 · Player
6,066,216Game Name.#14469199 · Fans
5,166,194Forsaken Dev Team#33548380 · Member
4,608,640Thinking Project#1235888 · noob
4,152,454Pilot Training Club#2794513 · Trainee Pilots
3,915,759QuadraTech#4645213 · Supporter
3,865,877Mega Obby Games!#16134074 · Member
3,662,099Ready, set, more!#7371243 · Fan
3,467,569InfinityInteractive#11257245 · Fans
3,215,928HD Games.#5028964 · Fan
3,166,879EQ Productions.#10360930 · Member
3,057,562Shark Fin Studios LLC#3751488 · Sharkie
2,994,952Playduo Studio#4626344 · ⭐Fan
2,811,958Ksieny#6712002 · Member
2,809,967Team Sloth Forever#3367671 · Member
2,420,844Police Roleplay Community#4328109 · Community Member
2,231,262Lionly Studios#8296978 · ⭐ Supporter
2,205,183Ponchokings#5103418 · Passenger
2,194,773Piriyo#33242376 · Cool people
2,112,241Lightbulb's Studio#6570411 · Member
2,046,736Gamelabs Studios#9895392 · 💎Valued Member
1,930,241Taxi Boss Group#11987919 · Member
1,894,012Raven Network#34218952 · Member
1,879,769Just For Fun™#4055514 · Members
1,598,429Lite Empire#3602628 · Player
1,577,396BurgerBlox Fast Food#8927586 · Trainee
1,505,900Hawkie Studios#9821921 · Member
1,402,279THEAM STUDIOS#15333610 · THEAM | Community Member
1,390,071Good Ape#3212936 · Movie Stars
1,384,104SCP | Roleplay Community#5479038 · Roleplayer
1,275,842Polaroid Studios#15422038 · Pre-Alpha Players
1,263,276Lyte Interactive#5449496 · Member
1,229,499Funwise#11338347 · Member
1,131,489Box7! Studios#10200322 · Epic Users
1,083,465Urbanshade: Hadal Division#9683893 · Vultures
1,078,534push to start#16345316 · Member
959,472PlayBox!#9363456 · 🌟 Fan
915,702dreamy™#4266525 · Supporter
886,041Μilitary Simulator#4800484 · No Division
807,274Pink Beard Games#5305641 · Fans
776,903Mega Tycoon Games 2#12817770 · 💖Fans
697,625PIGGY.#5618811 · Member
661,158Svardo Studios#5615790 · Members
656,497Sharkbyte Studios#3190544 · Sharkbyte Supporter
618,007tvdisko's studio corp#3520222 · ✅ [ member ]
613,464GabStudio#2981668 · Member
611,802Qubix Games#11495802 · Members
602,803Mega Tycoon Games#11866244 · Member
561,242-Lunar Productions-#7886735 · Players
522,102Scooby Studios.#9166214 · Supporter
490,208Minerblocks Studios#6520255 · Group Member 🔨
479,311Evolved Tycoons#11323011 · 💰 Member
419,698Dosmas Studios#5170894 · Paprika
404,555TenuousFlea Universe#4814485 · Supporters
389,100NK Studio#5463090 · Member
347,594Dev Noob Studios#34131223 · Member
333,131iThink Game Studio#8699282 · Member
323,652The Rainbow Omega Group#3229253 · Normie
282,309Maritime Roleplay Community#3297339 · (I) Roleplayer
265,639Pet Zoo by Voldex#3981930 · Member
243,932Played It#5790554 · Gamer
204,861IcyCube#3594704 · Member
202,232lick.io#12311629 · fanz
201,545RiddleMeThis⁉️#4485861 · Fan
200,993Blood Engine OfficiaI#32419220 · Fan
188,143Be a Silly Seal#34533445 · Seal
180,418Topple Games#7086204 · Member
177,370DestroyerCam Fan Club#11609328 · ✅ Member ✅
175,876Meep Game Studio#10871011 · 💜| Fan
174,718Crypt Studios.#15513468 · Crypt
172,400MayPop Studio#1186149 · ⚫️Supporter
122,188Team Genesis Studios#5154623 · Member
119,443Team NotIceCream#5858434 · JERRY Fans!
118,025Tycoon Studio Originals#2916194 · Member
104,037Kriptical Studios#5089046 · ADMINISTRATOR
93,480namegames#5307690 · Member
88,750Murder Drones RP REMASTERED Group#16524481 · Worker Drones & Disassembly Drones
67,630Novaly Tycoons#5678386 · Member
62,935Mumu Studios#8406218 · Member
59,749Katana Studios すごい#8101815 · ❤️Fans❤️
53,921Horror Portals#5462562 · Member
51,769Nomet#8526064 · Member
36,832Robbing Tycoon#6897197 · Member
33,190Pоkеmоn Brick Bronze | Re-Awakened Community#15524629 · 🙌| Trainer
23,218AngryAlien Studios#9558779 · Cult Members
4,208Sneaky Games!#16673955 · Sneakers
366Andy and Puffy’s Lag Shop#13487765 · Friends
133RELEASE THE GUBBIES!#16536811 · Member
43Apollo Cooperation(Main division)#16558372 · Security Operator(SecOps)
40Welp united#8074684 · Welp united Royal Security Forces
24Membership and rank as measured from this user’s public group list.