| 2025-07-23 07:14:49 | menace | Updated Deathstralker's membership of The Underworld Corporation: set as ex-member |
| 2025-05-26 10:20:30 | menace | Added BBS The 7th Guest as HQ for The Underworld Corporation |
| 2025-02-09 10:05:46 | ipggi | Updated Nemesis's membership of The Underworld Corporation: set as ex-member |
| 2025-01-31 21:36:22 | ipggi | Added link https://defacto2.net/g/the-underworld-corporation |
| 2025-01-31 21:35:44 | ipggi | Edited notes |
| 2025-01-20 21:49:19 | ipggi | Updated Nomadd's membership of The Underworld Corporation: set as ex-member |
| 2022-07-07 23:34:26 | dipswitch | Added BBS Count Zero as HQ for The Underworld Corporation |
| 2021-12-25 02:00:29 | dipswitch | Added Templar as a member of The Underworld Corporation |
| 2021-12-25 01:59:16 | dipswitch | Added Nemesis as a member of The Underworld Corporation |
| 2021-12-25 01:58:39 | dipswitch | Added BBS Ground Zero (803) as Distsite for The Underworld Corporation |
| 2021-12-25 01:57:52 | dipswitch | Added BBS Fatal Edge as Distsite for The Underworld Corporation |
| 2021-12-25 01:56:31 | dipswitch | Added BBS Styletron as HQ for The Underworld Corporation |
| 2021-12-25 01:56:04 | dipswitch | Added Malcar as a member of The Underworld Corporation |
| 2021-12-25 01:55:36 | dipswitch | Added BBS The Back Room as HQ for The Underworld Corporation |
| 2021-12-25 01:55:07 | dipswitch | Added BBS Rebel Alliance (908) as HQ for The Underworld Corporation |
| 2021-03-06 15:17:33 | dipswitch | Added BBS Toxic Dreams as WHQ for The Underworld Corporation |
| 2019-08-16 19:39:31 | 100bit | Added link https://www.pouet.net/groups.php?which=2543 |
| 2018-10-28 08:41:03 | sensenstahl | Added Stone Vyper as a member of The Underworld Corporation |
| 2018-08-29 17:34:25 | sensenstahl | Added Zaphod as a member of The Underworld Corporation |
| 2018-08-29 17:34:12 | sensenstahl | Added Ramirez as a member of The Underworld Corporation |
| 2018-08-29 17:34:00 | sensenstahl | Added Stone Killer as a member of The Underworld Corporation |
| 2018-08-29 17:33:54 | sensenstahl | Added Mister Minit as a member of The Underworld Corporation |
| 2018-08-29 17:33:43 | sensenstahl | Added Mixer as a member of The Underworld Corporation |
| 2018-08-29 17:33:34 | sensenstahl | Added Death Stalker as a member of The Underworld Corporation |
| 2018-08-29 17:33:23 | sensenstahl | Added Dr. No as a member of The Underworld Corporation |
| 2018-08-29 17:33:11 | sensenstahl | Added Nomadd as a member of The Underworld Corporation |
| 2018-08-29 17:33:04 | sensenstahl | Added Hitler as a member of The Underworld Corporation |
| 2018-08-29 17:32:57 | sensenstahl | Added Tasmaniac as a member of The Underworld Corporation |
| 2018-08-29 17:32:48 | sensenstahl | Added Malcar as a member of The Underworld Corporation |
| 2018-08-29 17:32:40 | sensenstahl | Added Lord Venger as a member of The Underworld Corporation |
| 2018-08-29 17:32:34 | sensenstahl | Added Hellmaster as a member of The Underworld Corporation |
| 2018-08-29 17:32:28 | sensenstahl | Added Night Shade as a member of The Underworld Corporation |
| 2018-08-29 17:32:20 | sensenstahl | Added Soul Leader as a member of The Underworld Corporation |
| 2018-08-29 17:32:09 | sensenstahl | Added Nemesis as a member of The Underworld Corporation |
| 2018-08-29 17:31:58 | sensenstahl | Added Willy Soft as a member of The Underworld Corporation |
| 2018-08-29 17:31:50 | sensenstahl | Added Black Panther as a member of The Underworld Corporation |
| 2018-08-29 17:31:36 | sensenstahl | Updated Rover's membership of The Underworld Corporation: changed member to Rover |
| 2018-08-29 17:31:24 | sensenstahl | Added Rover as a member of The Underworld Corporation |
| 2018-06-07 13:48:11 | exocet | Added Natural Mystic as a member of The Underworld Corporation |
| 2018-06-07 13:47:36 | exocet | Added Hobbit as a member of The Underworld Corporation |
| 2018-06-07 13:45:06 | exocet | Added Sinecure as a member of The Underworld Corporation |
| 2018-06-07 13:44:51 | exocet | Edited nick 'The Underworld Corporation': changed abbreviation to 'TUC' |
| 2018-06-07 13:44:44 | exocet | Added Freaker! as a member of The Underworld Corporation |
| 2018-06-07 13:42:35 | exocet | Added Corona as a member of The Underworld Corporation |