| Q (2015) | 10,546,838 | 1,730 |
| Q - A Neon Platformer (2020) | 40,559 | 13 |
| Q*bert (1982) | 5,318,639 | 1,982 |
| Q*bert (1999) | 16,143 | 40 |
| Q-Ball: Billiards Master (2000) | 87,631 | 45 |
| Q-YO Blaster (2018) | 167,237 | 251 |
| Q.U.B.E. (2011) | 7,700,358 | 3,077 |
| Q.U.B.E. 2 (2018) | 3,203,190 | 3,269 |
| q.u.q. (2023) | 25,634 | 74 |
| Qabara The Artist (2022) | 0 | 0 |
| QatQi (2012) | 1,445 | 1 |
| Qb (1984) | 1,854,389 | 146 |
| QB Planets (2021) | 5,029 | 20 |
| QB-3 (1982) | 6,477 | 18 |
| Qbeh-1: The Atlas Cube (2014) | 313,772 | 564 |
| Qbike: Cyberpunk Motorcycles (2017) | 4,890 | 5 |
| QBillion (1989) | 39,709 | 56 |
| QBz (2001) | 1,876,518 | 91 |
| Qin: Tomb of the Middle Kingdom (1997) | 4,405 | 11 |
| Qipa World-Hello Big Adventure (2018) | 0 | 0 |
| Qisah Tomang: Cycle Ends (2024) | 74 | 2 |
| Qix (1981) | 677,711 | 840 |
| Qix Adventure (1999) | 12,262 | 28 |
| Qix II - Tournament (1982) | 429 | 6 |
| Qix++ (2009) | 18,643 | 13 |
| Qiyb2 (2025) | 0 | 0 |
| Qlione (2010) | 9,648 | 7 |
| Qlione 2 (2010) | 2,563 | 2 |
| QMotion (2023) | 0 | 0 |
| Qoob (2025) | 0 | 0 |
| qop (2017) | 10,270 | 20 |
| Qora (2014) | 394,511 | 57 |
| QPet (2025) | 0 | 0 |
| QQ Dance (2008) | 95,049 | 29 |
| qrth-phyl (2018) | 2,689 | 6 |
| QT (2020) | 7,300,819 | 386 |
| Qu Zone (2025) | 0 | 0 |
| Qu-tros (2018) | 107,168 | 2 |
| Quack my Duck (2023) | 0 | 0 |
| Quacker Bros: First Heist (2024) | 27,088 | 14 |
| QuackShot (1991) | 3,939,911 | 2,616 |
| Quad Bike Crazy Driver (2024) | 0 | 0 |
| Quad Challenge (1991) | 42,824 | 55 |
| Quad Desert Fury (2003) | 27,416 | 56 |
| QUADBOTS: THE RISE OF CHRONO (2024) | 7 | 1 |
| Quadcubes (2025) | 0 | 0 |
| Quaddro 2 (2018) | 1,346 | 12 |
| Quadice (2023) | 0 | 0 |
| Quadradius (2007) | 98 | 5 |
| Quadrant (1983) | 42,362,829 | 497 |
| Quadrata (2022) | 3,272 | 16 |
| Quadrax (1994) | 11,139 | 16 |
| Quadrel (1990) | 958 | 7 |
| QUADREMOR (2025) | 15,987 | 19 |
| Quadrilateral Cowboy (2016) | 3,372,022 | 397 |
| Quadrobat (2022) | 0 | 0 |
| Quadrober Simulator (2024) | 3,167 | 22 |
| Quadrun (1983) | 54,492 | 41 |
| Quadruped Match (2024) | 48 | 2 |
| Quadulo (2025) | 0 | 0 |
| Quagmire (1993) | 19,179,366 | 450 |
| Quail Crossing (2025) | 0 | 0 |
| Quake (1996) | 75,601,761 | 65,596 |
| Quake 4 (2005) | 134,029,500 | 15,223 |
| Quake Champions (2017) | 113,891,627 | 66,430 |
| Quake II (1997) | 73,452,700 | 38,646 |
| Quake III Arena (1999) | 54,147,171 | 29,430 |
| Quake Live (2010) | 48,254,439 | 41,924 |
| Quake Survivor (2022) | 20,028 | 25 |
| QUALIA 3: Multi Agent (2014) | 562 | 8 |
| Quality Dreams, Reasonably Priced (2025) | 0 | 0 |
| Qualle Party (2024) | 1 | 1 |
| Quant (2023) | 5,770,809 | 802 |
| Quantum (1982) | 328,870 | 242 |
| Quantum Apex (2022) | 10,219 | 7 |
