| 2021-06-22 23:01:54 | 100bit | Added BBS Equalizer as HQ for Substance |
| 2021-05-25 10:19:53 | 100bit | Added BBS Scenet as HQ for Substance |
| 2021-04-16 15:10:43 | vitalkanev | Added affiliation with BBS Enigma for Substance |
| 2021-04-16 15:09:16 | vitalkanev | Added affiliation with BBS Dune 2 aka Dune II for Substance |
| 2021-04-16 15:08:52 | vitalkanev | Added affiliation with BBS Coder's F/X for Substance |
| 2021-01-26 20:28:08 | dipswitch | Added BBS Blastersound as HQ for Substance |
| 2021-01-25 19:46:09 | dipswitch | Added BBS The Underworld as Distsite for Substance |
| 2021-01-24 00:36:30 | dipswitch | Added BBS Dark Storm as Distsite for Substance |
| 2021-01-22 01:20:05 | dipswitch | Added BBS Splatterpunk as Distsite for Substance |
| 2019-11-16 16:48:00 | Brittle | Updated Chaser's membership of Substance: changed group to Substance, set as ex-member |
| 2019-11-10 14:56:38 | ltk_tscc | Deleted link http://janeway.exotica.org.uk/author.php?id=9326 |
| 2019-11-10 14:54:55 | ltk_tscc | Edited nick 'Substance': changed differentiator to 'pc' |
| 2019-11-10 14:54:16 | ltk_tscc | Added link https://www.pouet.net/groups.php?which=4065 |
| 2019-03-12 13:34:40 | exocet | Added SebL as a member of Substance |
| 2016-03-21 03:07:05 | menace | Added Pluton as a member of Substance |
| 2015-09-10 07:14:33 | menace | Edited notes |
| 2015-09-10 07:14:13 | menace | Added Saracen as a member of Substance |
| 2015-09-10 07:13:06 | menace | Edited notes |
| 2015-09-10 06:51:05 | menace | Edited notes |
| 2015-09-10 06:50:50 | menace | Edited notes |
| 2015-09-10 06:11:17 | menace | Edited notes |
| 2015-09-10 06:10:59 | menace | Edited notes |
| 2015-09-10 06:10:39 | menace | Edited notes |
| 2015-09-10 06:10:06 | menace | Edited notes |
| 2015-09-10 06:09:47 | menace | Edited notes |
| 2015-09-10 06:09:26 | menace | Edited notes |
| 2015-09-10 06:06:10 | menace | Edited notes |
| 2015-09-10 06:05:44 | menace | Edited notes |
| 2015-09-10 06:03:52 | menace | Edited notes |
| 2015-09-10 05:57:30 | menace | Edited notes |
| 2015-09-09 10:39:25 | menace | Added Chaser as a member of Substance |
| 2015-09-09 10:04:39 | menace | Edited notes |
| 2015-09-09 10:04:02 | menace | Edited notes |
| 2015-09-06 08:49:57 | menace | Updated Akira's membership of Substance: changed group to Substance, set as ex-member |
| 2014-06-18 21:13:07 | menace | Added Colorbird as a member of Substance |
| 2014-05-25 00:32:38 | dipswitch | Added Rooster as a member of Substance |
| 2014-05-24 12:49:18 | dipswitch | Added Hagal as a member of Substance |
| 2014-05-24 12:44:05 | dipswitch | Added Akira as a member of Substance |
| 2014-02-25 23:42:46 | dipswitch | Added Peete as a member of Substance |
| 2013-05-02 13:54:48 | menace | Added link http://www.scene.org/dir.php?dir=/demos/groups/substance/ |
| 2012-09-16 12:32:50 | menace | Added Tetno as a member of Substance |