| Zone Raiders (1995) | 45,026 | 17 |
| Zone Ranger (1984) | 6,772 | 35 |
| Zone Warrior (1995) | 18,084 | 31 |
| Zone X (1985) | 14,893 | 43 |
| The Zone: Stalker Stories (2022) | 2,113 | 17 |
| Zoo 2: Animal Park (2018) | 3,483,633 | 8,738 |
| Zoo Dentist (2021) | 9,473 | 20 |
| Zoo Empire (2004) | 450,778 | 48 |
| Zoo Evolution (2016) | 2,482,865 | 111 |
| Zoo Hospital (2007) | 182,936 | 72 |
| Zoo Keeper (1983) | 273,484 | 101 |
| Zoo Keeper (2003) | 1,384,602 | 314 |
| Zoo Quest: Puzzle Fun (2007) | 763 | 4 |
| The Zoo Race (2007) | 26,612,545 | 201 |
| Zoo Resort 3D (2011) | 83,689 | 20 |
| Zoo Simulator (2024) | 20,293,428 | 690 |
| Zoo Story (2011) | 227,548 | 77 |
| Zoo Studio (2022) | 0 | 0 |
| Zoo Tycoon (2001) | 110,617,146 | 3,429 |
| Zoo Tycoon (2013) | 61,313,449 | 2,087 |
| Zoo Tycoon 2 (2004) | 68,238,051 | 8,027 |
| Zoo Tycoon 2 DS (2008) | 170,703 | 28 |
| Zoo Tycoon DS (2005) | 21,803 | 79 |
| Zoo Tycoon: Friends (2014) | 94,891 | 8 |
| Zoo Vet: Endangered Animals (2007) | 33,318 | 71 |
| Zoo World (2021) | 59,269 | 26 |
| Zooba: Zoo Battle Royale Game (2019) | 63,643,597 | 7,897 |
| Zoobles! Spring to Life! (2004) | 0 | 0 |
| Zoobles! Spring to Life! (2011) | 6,233 | 14 |
| Zoochosis (2024) | 129,509,200 | 3,472 |
| ZooCube (2002) | 66,626 | 105 |
| ZooKeeper Simulator (2019) | 215,485,428 | 654 |
| Zool (1992) | 16,450,783 | 1,653 |
| Zool 2 (1993) | 126,441 | 126 |
| Zoolovelogy (2024) | 0 | 0 |
| Zoom! (1988) | 4,245,675 | 742 |
| Zoom: Paparazzi im Einsatz (2006) | 1,630 | 3 |
| Zooma VR (2020) | 20,469 | 61 |
| Zoombies: Animales de la Muerte (2013) | 60,053 | 23 |
| Zoombinis Island Odyssey (2002) | 5,209 | 15 |
| Zoombinis Mountain Rescue (2001) | 501,693 | 58 |
| Zooming Secretary (2011) | 26,538 | 36 |
| Zoomstar Megaracing Maximum (2008) | 73 | 1 |
| ZooMumba (2010) | 321,736 | 24 |
| Zoop (1995) | 367,983 | 366 |
| ZooSim (2021) | 11 | 2 |
| ZOR: Pilgrimage of the Slorfs (2022) | 117,497 | 125 |
| Zoria: Age of Shattering (2023) | 580,484 | 829 |
| Zork II: The Wizard of Frobozz (1981) | 24,313 | 195 |
| Zork III: The Dungeon Master (1982) | 12,170 | 77 |
| Zork Nemesis (1996) | 262,193 | 319 |
| Zork Zero (1988) | 46,687 | 99 |
| Zork: Grand Inquisitor (1997) | 166,798 | 289 |
| Zork: The Great Underground Empire (1980) | 383,279 | 277 |
| Zork: The Undiscovered Underground (1997) | 3,348 | 23 |
| ZorkQuest: Assault on Egreth Castle (1988) | 729 | 4 |
| ZorkQuest: The Crystal of Doom (1988) | 875 | 6 |
| Zorro (1985) | 142,990 | 76 |
| Zorro (1995) | 1,641,498 | 107 |
| Zorro and Zedd (2025) | 1,250 | 12 |
| Zorro: Quest for Justice (2009) | 5,205 | 11 |
