| 2022-04-11 09:54:47 | ghost | Added screenshot |
| 2022-04-11 09:51:53 | ghost | Added screenshot |
| 2017-08-02 13:57:29 | exocet | Added credit for Still on Chained: Graphics |
| 2017-08-02 13:55:53 | exocet | Added credit for Neurop on Chained: Graphics (3D) |
| 2017-08-02 13:55:39 | exocet | Added credit for Hex on Chained: Music |
| 2017-08-02 13:55:22 | exocet | Added credit for Shredder on Chained: Code |
| 2017-08-02 13:55:12 | exocet | Added credit for Bayger on Chained: Code |
| 2017-06-25 12:25:21 | Asle | Edited soundtrack details for Chained |
| 2017-06-25 12:20:09 | Asle | Added link https://files.scene.org/view/parties/1999/horizon99/demo/01.rar |
| 2014-03-03 16:22:33 | ltk_tscc | Set platform to MS-Dos |
| 2012-10-13 08:05:07 | menace | Updated competition placing info for Chained in Horizon 1999 Demo DOS & Windows competition |
| 2012-10-13 08:05:04 | menace | Updated competition placing info for Chained in Horizon 1999 Demo DOS & Windows competition |
| 2012-10-13 08:05:00 | menace | Added competition placing for Chained in Horizon 1999 Demo DOS & Windows competition |