 | Quarterback (set 1) | 1987 | Leland Corp. | quarterb | Sports / Football Amer. | 4.00 |
| Quarterback (set 2) (clone of: quarterb) | 1987 | Leland Corp. | quarterba | | 0.00 |
 | Quartet (8751 315-5194) (clone of: quartet) | 1986 | Sega | quarteta | | 0.00 |
| Quartet (Rev A, 8751 315-5194) | 1986 | Sega | quartet | Maze / Shooter Large | 7.43 |
| Quartet 2 (8751 317-0010) (clone of: quartet) | 1986 | Sega | quartet2 | Maze / Shooter Large | 0.00 |
| Quartet 2 (unprotected) (clone of: quartet) | 1986 | Sega | quartet2a | | 0.00 |
 | Quarth (Japan) (clone of: blockhl) | 1989 | Konami | quarth | Puzzle | 0.00 |
 | Quasar (set 1) | 1980 | Zaccaria / Zelco | quasar | Shooter / Misc. | 6.79 |
| Quasar (set 2) (clone of: quasar) | 1980 | Zaccaria / Zelco | quasara | Shooter / Misc. | 0.00 |
| | Quaterback (Mazooma) (Scorpion 4) (set 1) | 1969 | Mazooma | sc4quart | | 0.00 |
| | Quaterback (Mazooma) (Scorpion 4) (set 2) (clone of: sc4quart) | 1969 | Mazooma | sc4quarta | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 1) (clone of: sc4quart) | 1969 | Mazooma | sc4quartc | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 2) (clone of: sc4quart) | 1969 | Mazooma | sc4quartd | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 3) (clone of: sc4quart) | 1969 | Mazooma | sc4quartf | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 4) (clone of: sc4quart) | 1969 | Mazooma | sc4quartg | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 5) (clone of: sc4quart) | 1969 | Mazooma | sc4quarth | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 6) (clone of: sc4quart) | 1969 | Mazooma | sc4quartj | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 7) (clone of: sc4quart) | 1969 | Mazooma | sc4quartl | | 0.00 |
| | Quaterback (PR2064) (German) (Mazooma) (Scorpion 4) (set 8) (clone of: sc4quart) | 1969 | Mazooma | sc4quartm | | 0.00 |
| | Quaterback (PR2072) (Italian) (Mazooma) (Scorpion 4) (set 1) (clone of: sc4quart) | 1969 | Mazooma | sc4quartb | | 0.00 |
