| 2024-11-05 15:22:01 | Unlock | Added credit for Mastermind on No Name Demo: Graphics |
| 2024-09-07 06:38:34 | menace | Added credit for Mastermind on Partyresults: Text |
| 2024-09-05 20:57:52 | menace | Added credit for Mastermind on The Unshaved Coconut: Graphics (sprites) |
| 2024-01-19 02:13:42 | psenough | Added credit for Mastermind on Beatable: Code |
| 2024-01-19 02:04:51 | psenough | Added credit for Mastermind on Let's Disco: Code |
| 2023-11-09 10:24:39 | menace | Set real name |
| 2023-11-09 10:23:55 | menace | Added Mastermind as a member of Thundercats |
| 2023-11-09 10:23:44 | menace | Added Mastermind as a member of Royal Crackers International |
| 2023-11-09 10:23:12 | menace | Added Mastermind as a member of Crackmasters |
| 2021-04-29 18:36:20 | 100bit | Added credit for Mastermind on Party Demo II: Code, Text |
| 2020-02-11 07:02:56 | menace | Added credit for Mastermind on A Load of Old Shit: Code |
| 2019-07-22 17:02:10 | 100bit | Added credit for Mastermind on Fuck SCCS: Graphics |
| 2015-03-21 13:33:46 | menace | Set real name |
| 2015-03-21 13:33:35 | menace | Set location to Sweden |
| 2015-03-21 13:33:10 | menace | Added link http://noname.c64.org/csdb/scener/?id=711 |
| 2015-03-21 13:32:49 | menace | Added Mastermind as a member of Horizon |