| 2021-12-17 10:20:14 | ericorsio | Updated competition placing info for Quadrants in ECM Mode Demoeffect Competition 2020 Intro competition |
| 2021-12-17 10:20:13 | ericorsio | Updated competition placing info for Quadrants in ECM Mode Demoeffect Competition 2020 Intro competition |
| 2020-10-30 05:20:41 | 100bit | Added competition placing for Quadrants in ECM Mode Demoeffect Competition 2020 Intro competition |
| 2020-10-28 18:49:54 | hedning | Added link http://ag1976.com/files/gp_quadrants.prg |
| 2020-10-28 18:49:34 | hedning | Added link https://www.pouet.net/prod.php?which=87250 |
| 2020-10-28 16:22:24 | hedning | Added link http://csdb.dk/release/?id=197001 |
| 2020-10-28 16:18:30 | hedning | Added credit for Celticdesign on Quadrants: Music |
| 2020-10-28 16:18:20 | hedning | Added credit for Shadow on Quadrants: Code, Text |
| 2020-10-28 16:17:57 | hedning | Added 8 screenshots |
| 2020-10-28 16:16:34 | hedning | Added production 'Quadrants' |