| invqix | | Space Invaders / Qix Silver Anniversary Edition (Ver. 2.03) | Taito / Namco | 2003 |
| qix | | Qix (Rev 2) | Taito America Corporation | 1981 |
| qix2 | qix | Qix II (Tournament) | Taito America Corporation | 1981 |
| qixa | qix | Qix (set 2, smaller roms) | Taito America Corporation | 1981 |
| qixb | qix | Qix (set 2, larger roms) | Taito America Corporation | 1981 |
| qixo | qix | Qix (set 3, earlier) | Taito America Corporation | 1981 |
| sqix | | Super Qix (World/Japan, V1.2) | Kaneko / Taito | 1987 |
| sqixb1 | sqix | Super Qix (bootleg of V1.0, 8031 MCU) | bootleg | 1987 |
| sqixb2 | sqix | Super Qix (bootleg, No MCU) | bootleg | 1987 |
| sqixr0 | sqix | Super Qix (World/Japan, V1.0) | Kaneko / Taito | 1987 |
| sqixr1 | sqix | Super Qix (World/Japan, V1.1) | Kaneko / Taito | 1987 |
| sqixu | sqix | Super Qix (US) | Kaneko / Taito (Romstar License) | 1987 |
| twinqix | | Twin Qix (Ver 1.0A 1995/01/17, prototype) | Taito America Corporation | 1995 |
