101–150 z 204 — strana 3
| Název | Systém | Žánr | Datum vydání | Score |
|---|---|---|---|---|
| Onirike DevilishGames · Released | — | Platform, Puzzle | 2020 | — |
| Only Up! SCKR Games · Released | PC | Platform | 24 května 2023 | 7 |
| Onrush Codemasters · Released | PS4, Xbox One | Racing | 05 června 2018 | — |
| Ontos Frictional Games · Upcoming | PC, PS5, Xbox Series X | Horror | 2027 | — |
| Onward Downpour Interactive · Released | Meta Quest, Oculus Rift | Action | 29 srpna 2016 | — |
| Ooblets Glumberland · Released | PC, Xbox One | Simulation | 2020 | — |
| Open Country Fun Labs · Released | — | — | 03 června 2021 | — |
| Open Me! Japan Studio | PS Vita | Puzzle | TBA | — |
| Open Roads Fullbright · Released | PC, Xbox One, Xbox Series X, PS4, PS5, Nintendo Switch | Adventure | 28 března 2024 | — |
| Operation Abyss: New Tokyo Legacy Experience Inc. · Released | PS Vita | RPG | 05 června 2015 | — |
| Operation Darkness Success · Released | Xbox 360 | Strategy | 30 září 2008 | — |
| Operation Flashpoint: Dragon Rising Codemasters · Released | PC, PS3, Xbox 360 | Action | 09 října 2009 | — |
| Operation Flashpoint: Red River Codemasters · Released | PC, PS3, Xbox 360 | Action | 21 dubna 2011 | — |
| Operation Highjump: The Fall of Berlin Mansion Games · Released | PC, PS4, Xbox Series X, Nintendo Switch | Action, Platform | 31 března 2026 | — |
| Operation Night Strikers LTD, M2 Co · Released | Nintendo Switch | — | 07 srpna 2025 | 9 |
| Operation Serpens MeKiwi Oy, GINRA TECH · Released | PC, PS4, PS5 | — | 22 července 2020 | — |
| Operation: Tango Clever Plays · Released | PS4, PC, PS5 | Action, Puzzle | 01 června 2021 | — |
| Operencia: The Stolen Sun Zen Studios · Released | PC, Xbox One, PS4, Nintendo Switch | RPG | 29 března 2019 | — |
| Opoona Koei · Released | Wii | RPG | 12 září 2008 | — |
| Opus: Echo of Starsong Sigono Inc. · Released | PC, Nintendo Switch, Xbox One, Xbox Series X | Adventure | 27 července 2021 | — |
| Opus: Prism Peak Sigono Inc. · Released | Nintendo Switch, Nintendo Switch 2, PC | Adventure | 2025 | — |
| Orange Cast Valkyrie Initiative · Released | PC | — | 30 září 2020 | — |
| Orangeblood Grayfax Software | PC | RPG | TBA | — |
| Orbit 4Bit Games · Released | PC | Arcade | 30 června 2015 | — |
| Orbital Bullet SmokeStab | PC | Action, Platform | TBA | — |
| Orbital Gear Night Node Software | Linux, Mac, PC | Action | — | — |
| Orbital Overdrive Released | PC | — | 31 března 2026 | — |
| Orbitals Shapefarm · Released | Nintendo Switch 2 | Adventure | 03 září 2026 | — |
| Orcs Must Die Robot Entertainment · Released | Xbox 360, PC, XBLA | Action, Strategy | 05 října 2011 | — |
| Orcs Must Die 2 Robot Entertainment · Released | PC | Action, Strategy | 30 července 2012 | — |
| Orcs Must Die 3 Robot Entertainment · Released | Stadia, PC, Xbox One, PS4 | Action | 14 července 2020 | — |
| Orcs Must Die: Deathtrap Robot Entertainment · Released | PC, Xbox Series X | Action | 23 ledna 2025 | 7 |
| Orcs Must Die: Unchained Robot Entertainment · Released | PC, PS4 | Action, Strategy | 30 dubna 2017 | — |
| Order & Chaos Online Gameloft | iOS, Android, WP8 | MMO | — | — |
| Order of the Sinking Star Thekla · Upcoming | PS5, Nintendo Switch 2, PC | Puzzle | 08 října 2026 | — |
| Order of War Wargaming.net · Released | PC | Strategy | 18 září 2009 | — |
| Organic Panic Last Limb | PC, PS4, Xbox One | Platform | — | — |
| Ori and the Blind Forest Moon Studios · Released | PC, Xbox One, Xbox 360, Nintendo Switch | Platform, Puzzle | 11 března 2015 | — |
| Ori and the Will of the Wisps Moon Studios · Released | Xbox One, PC, Xbox Series X, Nintendo Switch | Platform | 11 března 2020 | — |
| Oriental Empires Shining Pixel Studios · Released | PC | Strategy | 30 září 2016 | — |
| Orken Demagog Studio | PC | Action, RPG | TBA | — |
| Orphan Age Studio Black Flag | PC | Simulation, Strategy | — | — |
| Orwell: Keeping an Eye on You Osmotic Studios · Released | PC | Adventure | 27 října 2016 | — |
| Osiris: New Dawn Fenix Fire | PC, PS4, Xbox One | Action | — | — |
| Othercide Lightbulb Crew · Released | PC, PS4, Xbox One, Nintendo Switch | Action, Strategy | 28 července 2020 | — |
| Oure Heavy Spectrum Limited · Released | PS4 | Adventure | 30 října 2017 | — |
| Out of Ammo Rocketwerkz · Released | PC | Action, Strategy | 15 dubna 2016 | — |
| Out of Line Duckling Studios · Released | PC, PS4 | Platform | 2018 | — |
| Out of Place Backpack Games | — | — | — | — |
| Out of Place Bagpack Games | PC | — | — | — |