| 2025-04-30 22:15:05 | ltk_tscc | Added Atari Bit Byter User Club as organiser of ABBUC Software Contest 2013 |
| 2017-08-12 13:02:07 | 100bit | Set start date to 2013, end date to 2013 |
| 2014-10-21 15:51:18 | ltk_tscc | Set website to http://www.abbuc.de/atari/software-ressort/81-software/softwarewettbewerbe/1666-software-wettbewerb2013 |
| 2013-11-03 15:27:49 | ltk_tscc | Added competition Game |
| 2013-11-03 15:27:33 | ltk_tscc | Added party 'ABBUC Software Contest 2013' |