Mark @sinisterboat #668117650
7 July 2018
account created (per Roblox API)
30 Sept 2026, 02:23
last measured (UTC)
Username record
@sinisterboat — observed 30 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)
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Also a member of
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12,749,514(学乱) Gakuran#416091513 · Students
7,496,633Brainrot Evolution#35325835 · Member
7,258,912RELL World#1226491 · [Gen] 2X2X
6,625,993[B:S] Azure Latch Team#35316274 · Member
6,560,446[B:S] ARX Team#15009415 · Member
4,170,487[B:S] ALS Team#12229756 · Member
3,481,227RELL GAMES#4939446 · Bronze Rell
3,464,240Awesome Ninja Games#15557357 · Member
3,269,079Cool group for big cool people#9285211 · Pro
2,939,241Universe Time Studio#6556072 · Universe Member
2,473,484ΞGO#34966374 · Member
2,305,322Nova Hotels X#4683371 · Hotel Guest
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1,763,054Bloxton Hotels#2788849 · 1 | Hotel Guest
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869,147 Solera Hotels & Resorts#3435330 · Hotel Guest
643,016delpw#5586459 · Member
581,147Serendipity Support Center#4346739 · Client
542,134Slubberdegullion#16235723 · Member
431,780Shindo Story#8464407 · Pending
419,942Block Games Studios#6129662 · Members
419,176MOMENTXM#17351304 · [Player]
394,321(私学 ) Shigaku#1009579253 · Member
349,368Archived Library#32725402 · Member
252,716Holy War X#4302692 · Community Member
249,211Heaven Stand : Studio#14969442 · Heavenly Member
232,283Hidden Ember Village#8472120 · Villager
198,114BAX Studio#5218591 · [🅱️🅰️❌] Fans
194,422Project Mirror Labyrinth#127473071 · Member
180,591Demon Corps North Branch#16346602 · gen44513
137,932OVA Game Studio#10455298 · Crusader
129,302Shinobi BattleGrounds#4729665 · Shinobi
112,667Bloodsung#33668517 · Modern Era
85,146Shinobi Community#7338529 · Pending
84,862"n" Gamepasses#8404451 · Player
82,162FORCE VISIONS#4840111 · Wave 2
51,974Shinobi Organizations#7274207 · Pending
45,833Metsu Entertainment#9729817 · Players
40,201After The Soul#34020430 · member
21,795Ohniway#34343379 · 🔥 | Ohniway
18,347Wocky Incorporated#32581038 · Member
15,146National Roblox Basketball Association (NRBA) #589029 · Fans
12,144(NRBA)- National Roblox Basketball Association#950128 · Fans
6,623Prodigy [CC]#33585058 · Tester
1,632Cyberpunk: Nexus#35300834 · Edgerunner
1,472Clovr Studio#12505174 · Closed Community
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402Try's Clothing Co.#17293907 · Member
367Pink! Pink! Pink!#6161964 · Gal🌺
260Distressedd#33827044 · Marked
34SH4D0W Studios!#11373249 · Admin
11Membership and rank as measured from this user’s public group list.