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@Maseman212

Slenderman @Maseman212 #191191179

6 December 2016
account created (per Roblox API)
7 Sept 2026, 01:29
last measured (UTC)

Username record

@Maseman212 — observed 7 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

Nosniy Games#3461453 · Fan
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Catalog Avatar Creator#15102943 · ✨ Member
45,994,706
Scriptbloxian Studios#4705120 · Legend
30,020,478
LSPLASH#3049798 · you guys
24,183,400
Bee Swarm Simulator Club#3982592 · Member
18,237,520
Uplift Games#295182 · Dreamer
14,916,215
Rumble Studios#3333298 · Fan
11,225,850
The Flamingo Fan Club#3336691 · December 5th we will all do something
9,877,743
BlushCrunch Studio#14576965 · Member
9,535,065
Low Effort Studios.#16403616 · Yeeter
7,386,574
Slap Battles#9950771 · BELOVED FAN <3
6,732,680
Paradoxum Games#4914494 · Player
6,062,450
mPhase#10587104 · Member
4,447,857
Tetra Games#4843918 · Fan
4,196,080
Thinking Project#1235888 · noob
4,152,420
US Simulators#10741807 · Member
3,338,294
HD Games.#5028964 · Fan
3,167,128
MiaoMeoHome#17075790 · Fan
3,011,134
BlockZone#5202664 · Member
2,511,556
Ignite Games#5878314 · Player
2,242,340
G RBLX Games#3481335 · 🔥| Players
2,218,077
Minimal Games#12564376 · Member
2,202,354
Just For Fun™#4055514 · Members
1,598,234
Robloxian High School Group#2876351 · Player
1,483,621
Cadlem#13321872 · Fan
1,337,538
Rats United#5948630 · Rat
1,335,602
SCP | Roleplay Community#5479038 · Roleplayer
1,274,424
Lyte Interactive#5449496 · Member
1,229,258
Innovation Inc.#157764 · Member
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dreamy™#4266525 · Supporter
886,002
team spelled incorrectly#10183203 · Member
794,880
Jean's Bizarre Community#6356872 · Member
729,086
Poppy's Dolls#3274387 · fans
724,466
DantesDivine#4928618 · 💖 Special Member
654,838
Archkos Studios#15933961 · Player
608,073
Rainbow Flower Studios#12992705 · Fans
574,043
trash games lol#32429001 · friend
434,690
GMD Corporation#2707586 · Fan
422,209
Skibidi Toilet Boom#35328237 · Skibidi Boom
331,693
Killerboom Fan Group#2894586 · Supporters
315,841
FE Studios#5112430 · Group Members
314,032
Oof Games 2#3788014 · Oof
276,761
Phexonia Studios#3573124 · Member
271,311
Speedster Studios Inc#4348351 · Super Speedsters
262,184
Strange Bathtub War Group#33369858 · Member
259,597
RB Battles#4749931 · Member
253,730
PandaTM's Studios#9203602 · Member
195,314
Piggy Roleplay : Infection Official Group!#6306207 · Supporters
170,747
The Construct#5229056 · Accepted
148,501
FUEL INDUSTRY#5652298 · USELESS NOBODY CACKIES
137,902
Team Genesis Studios#5154623 · Member
119,450
Evolution Artworks#4724903 · Member
96,019
nebs silly games#33575834 · Member
86,573
Rebranded Fried Productions#172195401 · Member
60,066
1337 Innovation#35138766 · Member
56,996
Undertale Ultimate Time Line Community#8229950 · Member
52,707
Doge squad (only doges)#3754824 · Fans🐕
44,547
Project Delta Community#8390934 · Member
37,815
Undertale Mania Of Heroes#12482511 · Member
31,646
GreenGem Studios#10226822 · Member
24,822
Undertale: Timeline Reset#16611098 · Member
23,461
Sands Offical Group#8211960 · Sander
18,059
//-W.I.P-//#15468689 · Customers
17,122
Bluenation#3186106 · Player
16,363
Samsaken#117713346 · Moderator 🛡️
14,282
TTRP: Recreated#11557470 · Member
12,893
Undertale Madness AU Fight#15689382 · Lazy sans
11,666
たつのアンテのグループ#15558320 · メンバー
10,374
Robux Rat#6163921 · RAT IN ROBUX
9,101
Dust sans simulator. THE GROUP!#15179110 · Member
8,448
ugc grows offline#35983933 · members
7,757
Alex's raft#8427925 · Otter
6,318
Silliness Development#32936530 · level 1 crook
5,397
Omega games: Reimagined!#12447348 · Owner
3,918
--[[ goat ]]--#7961738 · Dreemurr
2,593
UTMM Fan Group#13511648 · EPIC UTMM fans
1,848
<-Cooked Community->#4801334 · Owner
1,803
Bendy Battles Official#35636002 · Lost one
1,759
Floppa UTMM Games and stuff#15775282 · Memeber
1,640
Inky’s Realm#15041516 · Member
1,520
Code-Group : Games And More#13433373 · Member
480
AU Undertale Universe#3285583 · ✧ under!swap
353
The big sponge bob fan club#7006021 · 🦀mr.krabs fans🦀
290
Project Rewritten (CANCELLED)#15558076 · Visitors
264
PUNNYSKELETON94 Fans#9437665 · PALS!
191
undertale au's x!#8774400 · fellswap sans
149
socimo#14940944 · Members
112
Iplaps Fan Club#4737646 · People
110
The unknown timeline bug reports lol#15000857 · Owner++++++++
84
Spamton Industries#15993034 · [[Valued Customers]]
82
The hopes council#8595327 · RED KING'S GUARD.
77
spongebob ultimate FAN CLUB#5016554 · main charaters
53
Spinels forever#9117413 · Member
37
Just a totally normal group.#13018042 · cool dudes and dudettes
24
The AU Gang#9219364 · AU member
21
realspeed#9248093 · Member
14
dreamy's little group#15464910 · Fun people ( or who are you kinda thing )
12
U N D E R S W A P#10235361 · ℂ𝕚𝕥𝕪 𝕡𝕖𝕠𝕡𝕝𝕖
11

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