| 2025-12-03 21:26:29 | ipggi | Set release date to 1982 |
| 2025-12-03 21:24:25 | ipggi | Edited notes |
| 2021-02-06 14:52:04 | menace | Added link https://archive.org/download/085_Missing_Ring/085_Missing_Ring.dsk |
| 2021-02-06 14:51:55 | menace | Added link https://archive.org/details/085_Missing_Ring |
| 2021-02-06 14:51:49 | menace | Added screenshot |
| 2021-02-06 14:51:38 | menace | Added production 'The Missing Ring' |