 | Q*bert (early test version) (clone of: qbert) (sample of: qbert) | 1982 | Gottlieb | qberttst | Platform / Run Jump | 0.00 |
| Q*bert (Japan) (clone of: qbert) (sample of: qbert) | 1982 | Gottlieb (Konami license) | qbertjp | Platform / Run Jump | 0.00 |
| Q*bert (US set 1) | 1982 | Gottlieb | qbert | Platform / Run Jump | 9.57 |
| Q*bert (US set 2) (clone of: qbert) (sample of: qbert) | 1982 | Gottlieb | qberta | Platform / Run Jump | 0.00 |
| Q*bert Board Input Test Rom (clone of: qbert) (sample of: qbert) | 1982 | Gottlieb | qbtrktst | Misc. | 8.50 |
 | Q*bert's Qubes (sample of: qbert) | 1983 | Mylstar | qbertqub | Platform / Run Jump | 0.00 |
| | QB-3 (prototype) | 1982 | Rock-ola | qb3 | Shooter / Field | 0.00 |
 | Qix (set 1) | 1981 | Taito America Corporation | qix | Puzzle / Outline | 9.87 |
| Qix (set 2) (clone of: qix) | 1981 | Taito America Corporation | qixa | Puzzle / Outline | 0.00 |
| Qix (set 3) (clone of: qix) | 1981 | Taito America Corporation | qixb | Puzzle / Outline | 0.00 |
| Qix II (Tournament) (clone of: qix) | 1981 | Taito America Corporation | qix2 | Puzzle / Outline | 0.00 |
 | Quadro Quiz II | 1985 | Status Games | quaquiz2 | Unplayable | 1.00 |
 | Quantum (prototype) (clone of: quantum) | 1982 | Atari | quantump | Misc. | 0.00 |
| Quantum (rev 1) (clone of: quantum) | 1982 | Atari | quantum1 | Misc. | 0.00 |
| Quantum (rev 2) | 1982 | Atari | quantum | Misc. | 0.00 |
 | Quarterback | 1987 | Leland Corp. | quarterb | Sports / Football Amer. | 10.00 |
| Quarterback (set 2) (clone of: quarterb) | 1987 | Leland Corp. | quartrba | Sports / Football Amer. | 0.00 |
 | Quartet (8751 315-5194) (clone of: quartet) | 1986 | Sega | quartet1 | | 0.00 |
| Quartet (Rev A, 8751 315-5194) | 1986 | Sega | quartet | Maze / Shooter Large | 9.50 |
| Quartet 2 (8751 317-0010) (clone of: quartet) | 1986 | Sega | quart21 | | 0.00 |
