International Steamship Organization #3881309
RoleplayENroleplayhistoricalmaritime
International Steamship Organization is a Roblox group in the roleplay category, created on 2018-02-16. It has grown to 6,236 members. The group is listed in Roblox's community group directory, tracked here for its membership size and creation date.
Description
|International Steamship Organization ஜ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ஜ Formerly the Naval Roleplaying Association, founded on 2/11/18, the group has now been reorganized into the International Steamship Organization. We host VOYAGES on Friday's at 7:00 PM EST and Saturday's at 1 PM PM EST, all starting 30 minutes BEFORE the previously listed time. Example: The Friday's voyage will start at 6:30 PM EST. The ISO takes you back in time to the turn of the century, both world wars, Roaring Twenties, the Great Depression, and more. We pride ourselves in having a state of the art crew and primarily specialize in sinking/disaster roleplays aboard our vessels! As the group is being reorganized we are reclaiming our spot as pioneers of new scripts and features, bringing you the latest innovations for you to experience in our events! If you'd like to join the ISO's crew, hosting department, or development team, you can join it through our social links or by using this code: .gg/FhBbXUx5F2
Written by the group; not a statement by this register.
Membership history
Growth
| Measured (UTC) | Members | Change |
|---|---|---|
| 16 Oct 2026, 18:40 | 6,217 | -1 |
| 16 Oct 2026, 17:09 | 6,218 | -1 |
| 13 Oct 2026, 02:26 | 6,219 | -1 |
| 9 Oct 2026, 22:32 | 6,220 | -2 |
| 7 Oct 2026, 13:21 | 6,222 | -1 |
| 7 Oct 2026, 03:12 | 6,223 | -1 |
| 6 Oct 2026, 19:36 | 6,224 | -1 |
| 4 Oct 2026, 16:32 | 6,225 | -1 |
| 4 Oct 2026, 12:45 | 6,226 | -1 |
| 1 Oct 2026, 01:09 | 6,227 | -1 |
| 26 Sept 2026, 21:41 | 6,228 | -1 |
| 21 Sept 2026, 21:41 | 6,229 | -1 |
| 20 Sept 2026, 03:51 | 6,230 | -1 |
| 19 Sept 2026, 20:12 | 6,231 | -1 |
| 12 Sept 2026, 18:40 | 6,232 | -1 |
| 11 Sept 2026, 00:10 | 6,233 | -1 |
| 10 Sept 2026, 22:31 | 6,234 | -1 |
| 6 Sept 2026, 09:40 | 6,235 | -1 |
| 5 Sept 2026, 21:31 | 6,236 | -1 |
| 5 Sept 2026, 03:02 | 6,237 | first reading |
Ownership
Owned by No_Mark (@xXNoScopeXx350) as measured.
Claimed by user #248486690 — observed between sweeps, detected 10 Aug 2026, 13:44 UTC
Detection dates bound when a change was seen by this register, not when it happened.
Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.
Experiences
Experiences this group owns, by lifetime visits. Live-player counts are from our last measurement.
Members we’ve seen
No_Mark (@xXNoScopeXx350) — C | President (rank 255)
Mr_Conductor (@galaxyrailroad) — C | Vice Chairman (rank 99)
JackRobynBell (@AckitsJackk) — C | Board of Directors (rank 90)
leper (@leperrrrrr) — C | Board of Directors (rank 90)
@MBnition — C | Chief Developer (rank 88)
Jet Turtle (@RoastToastinator) — C | Scripter (rank 87)
SMU35 (@Handelsschiff) — C | Developer (rank 86)
Luu (@luisgamer28382) — C | Developer (rank 86)
@Susquahena — C | Developer (rank 86)
Saturn (@Saturn_wav) — C | Developer (rank 86)
Mordecai (@axexnc05) — C | Host (rank 85)
Napoleon (@Igtben70) — C | Host (rank 85)
Doc (@DrLyndenCordwayner) — HC | Chief Officer (rank 79)
Commander (@K0mmandor) — D | Senior Officer (rank 70)
@Veritallon — D | Senior Officer (rank 70)
Kero (@justkerosidian) — D | Senior Officer (rank 70)
@KV2OfTheLake — D | Junior Officer (rank 69)
Red Pencil (@warboyshipboy2) — D | Quartermaster (rank 54)
Urptin (@abtin6879) — D | Seaman (rank 52)
Yann (@Edith_Howard) — D | Sea Cadet (rank 51)
Raccoon (@krisko313) — D | Sea Cadet (rank 51)
UnknownSr (@Sportage_162) — D | Sea Cadet (rank 51)
scot (@Dynamic_Scot) — D | Sea Cadet (rank 51)
Ayden (@Ayden_34582) — HC | Purser (rank 48)
RussianEmpire (@ACT7310) — V | Chief Steward (rank 46)
A sample — only members this register has independently measured, highest rank first. Not the full roster.
Rank structure
Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).
Related groups
Groups whose measured members overlap with this one — a sample from our membership graph.
Open data
Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)
Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.