| 2023-12-13 18:18:55 | ltk_tscc | Added credit for Gumi on Revenge Of 'Volume Demo': Code |
| 2023-05-19 18:16:52 | miker | Added credit for Gumi on NoName aka NoNejm: Code |
| 2023-05-19 17:14:26 | miker | Added credit for Gumi on Historia Niespełnionych Zapędów: Graphics (Conversion) |
| 2023-05-19 16:45:30 | miker | Updated Gumi's credit on Pictures from PC: Graphics (Conversion), Code |
| 2023-05-19 16:45:12 | miker | Added credit for Gumi on Pictures from PC: Graphics (Conversion) |
| 2021-06-03 09:40:38 | ltk_tscc | Added credit for Gumi on DeafMan: Code |
| 2017-09-17 15:23:10 | ltk_tscc | Added link http://atariki.krap.pl/index.php/Gumi |
| 2015-10-19 17:44:58 | miker | Added credit for Gumi on Total Daze: Code |
| 2014-06-07 19:44:20 | ltk_tscc | Edited nick 'GumiSoft Ltd.': changed name to 'GumiSoft Ltd.' |
| 2014-06-07 19:44:03 | ltk_tscc | Added nick 'Gumi Soft' |
| 2013-04-07 11:43:55 | ltk_tscc | Set real name |
| 2013-04-07 11:43:36 | ltk_tscc | Added Gumi as a member of Denomia |
| 2013-03-18 15:01:59 | ltk_tscc | Set location to Poland |
| 2012-08-30 06:17:24 | menace | Added Gumi as a member of Tight |