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@MountianTheory

@MountianTheory #28714325

17 June 2012
account created (per Roblox API)
15 Aug 2026, 18:21
last measured (UTC)

Username record

@MountianTheory — observed 15 August 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)

Creeper Studios#676180
86
The First Encounter#598649
11
The Bliss Imperium#662443
7
The Claimnest Empire Air Force#759532
3
The Sleeping Imperuim#698320
3
Elite Traders of ROBLOX#712194
3
Eyeless Design Corp.#650490
3
Sincerity Tales#736997
2
Froobs/Noobs of ROBLOX#679182
1

Open data

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

Also a member of

Roblox#7 · Member
13,452,516
The First Encounter Assault Recon#72321 · [SPC] Specialist
501,264
Trade.#650266 · Master Trader
444,515
Vortex Security#199219 · Player
192,010
Team Domino#293482 · Ensign
108,456
WIJ#53272 · Trooper
43,202
Iron Force#628223 · 1 | Cadet
36,205
Frost Clan#44565 · Warrior
22,390
Knights of RedCliff#271454 · Knight
13,877
ROBLOX Community Staff and Forum Users#679727 · Forumer
10,540
Magic Builders#490811 · Junior Builder
1,887
Limited U Collectors#316040 · Undecided
1,170
Donations for the Better#40068 · Member
808
Roblox Elite Quads#509472 · [LR:1] Recruit
633
TRADE - 4 - ALL#677416 · Trader
226
Peyton List Official Fan Club#671725 · Group Advisors
188
Rover Clan#740285 · [L1] Ensign
150
Benedetto Famiglia#642163 · [l] Ciondolare
109
Glam Dazzle Cheerleading Squad#748985 · tsyss
104
Magma Force!#600133 · Enlist [ENL]
73
V E C T O R#707422 · Need To Learn
46
The Rich People Of Roblox #38433 · richer than some ppl
43
The Noforian Empire#620761 · Sergeant
40
The Supreme Supremacy Elites#607327 · Cadet/Enlist; 1LR
33
The hawk Foundation Cadet Program#384502 · Ensign
32
The epic noobs.#484020 · Noob dude
16
The Wrath Empire#663370 · [2]Wrath Private 1st Class
15
The Claimnest Empire#729761 · Recruit [REC]
12
Gear survivorz#614614 · Gear aprentice
9
Darkshadow Brothers#749081 · [Nr]Darkangel
7
Roblox Design Incorporated#625499 · Designs Maps
7
Vectorious#725617 · Jr. Grunt - V
2
Tigershark Designs#740788 · Artist
1
Limited Kings#671097 · Limited Collecter
1

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