Näytetään 1–50 / 212 — sivu 1
| Nimi | Järjestelmä | Genre | Julkaisupäivä | Score |
|---|---|---|---|---|
| Obduction Cyan Worlds · Released | PC, Mac, PS4 | Adventure | 22 elokuun 2016 | — |
| Obergenie Sparrow Games | PC | — | — | — |
| Objects in Space Flat Earth Games | PC | Simulation | — | — |
| Obscure: The Aftermath Playlogic · Released | PSP | Horror | 09 lokakuun 2009 | — |
| Obscuritas Ravenscourt · Released | PC | Horror | 18 maaliskuun 2016 | — |
| Observation No Code · Released | PS4, PC | Adventure | 21 toukokuun 2019 | 8 |
| Observer Bloober Team · Released | PC, Xbox One, PS4, Nintendo Switch | Horror, Adventure | 15 elokuun 2017 | 7 |
| Observer: System Redux Bloober Team · Released | PS5, Xbox Series X, PS4, Xbox One, PC | Horror, Adventure | 10 marraskuun 2020 | 7 |
| Oceanhorn 2: Knights of the Lost Realm Cornfox & Brothers | iOS, PC, Nintendo Switch | Adventure | TBA | 7 |
| Oceanhorn 3: Legend of the Shadow Sea Cornfox & Brothers · Released | Ipad, Iphone, iOS | Action, RPG | 05 maaliskuun 2026 | — |
| Oceanhorn: Chronos Dungeon Cornfox & Brothers · Released | iOS | Action, RPG | 08 tammikuun 2021 | — |
| Oceanhorn: Monster of Uncharted Seas Cornfox & Brothers · Released | iOS, PC, PS4, Xbox One, Nintendo Switch | Action, Adventure | 01 joulukuun 2013 | 8 |
| Octahedron Demimonde · Released | — | Music | 20 maaliskuun 2018 | — |
| October Night Games Octobear Knight Games · Released | PC | Horror | 15 lokakuun 2020 | — |
| Octodad: Dadliest Catch Young Horses · Released | Linux, Mac, PC, PS4, Wii U, Xbox One | Simulation | 30 tammikuun 2014 | — |
| Octopath Traveler Square Enix · Released | Nintendo Switch, PC, Stadia, Xbox One, PS4, PS5 | RPG | 13 heinäkuun 2018 | 7 |
| Octopath Traveler 0 Square Enix · Released | Nintendo Switch, Nintendo Switch 2, Xbox Series X, PS4, PS5, PC | RPG | 04 joulukuun 2025 | 7 |
| Octopath Traveler II Square Enix · Released | Nintendo Switch, PC, PS4, PS5, Xbox One, Xbox Series X | RPG | 24 helmikuun 2023 | 8 |
| Octopath Traveler: Champions of the Continent Square Enix · Released | iOS, Android | RPG | 27 heinäkuun 2022 | — |
| OD Kojima Productions | PC, Xbox One, Xbox Series X | Horror | TBA | — |
| OddBallers Ubisoft · Released | — | Party | 26 tammikuun 2023 | — |
| Oddworld Just Add Water · Released | PS3, Xbox 360, Wii | Puzzle, Adventure | 2011 | — |
| Oddworld: Munch's Oddysee HD Just Add Water · Released | PS3 | Platform | 01 lokakuun 2011 | — |
| Oddworld: New'n'Tasty Just Add Water · Released | PC, PS3, PS Vita, Wii U, PS4, Xbox One | Platform | 23 heinäkuun 2014 | 8 |
| Oddworld: Soulstorm Oddworld Inhabitants, Firma Studio · Released | PS5, PS4, PC, Xbox One, Xbox Series X, Nintendo Switch | Platform | 06 huhtikuun 2021 | 7 |
| Oddworld: Stranger's Wrath Oddworld Inhabitants, Just Add Water | Xbox, PSN, PS3, PS Vita, Ipad, Iphone, iOS, Android, Nintendo Switch | Action | — | 8 |
| Oddyssey: Your Space, Your Way Weird Fish | PC | Adventure | TBA | — |
| Ode Reflections · Released | PC | Music | 27 marraskuun 2017 | — |
| Odin Sphere Vanillaware | PS2 | RPG | — | — |
| Odin Sphere: Leifthrasir Vanillaware · Released | PS4, PS Vita, PS3 | Action, RPG | 24 kesäkuun 2016 | — |
| Odyssey The Young Socratics | PC | Puzzle, Adventure | — | — |
| Of Ash and Steel Fire & Frost | PC | RPG | — | — |
| Of Bird and Cage Capricia Productions · Released | PC | Action, Music, Adventure | 20 toukokuun 2021 | — |
| Of Kings and Men Donkey Crew | PC | Action | TBA | — |
| Of Orcs and Men Cyanide Studios, Spiders Studio · Released | PC, PS3, Xbox 360 | Action, RPG | 12 lokakuun 2012 | 6 |
| Off The Grid Gunzilla Games · Released | PC, PS5, Xbox Series X | — | 2023 | — |
| Off-Road Drive 1C: Avalon · Released | PC | Racing | 12 tammikuun 2012 | — |
| Offworld Trading Company Mohawk Games · Released | PC | Strategy | 28 huhtikuun 2016 | — |
| Oh My Godheads Titutitech · Released | Xbox One, PS4, PC | Party | 05 joulukuun 2017 | — |
| Oh...Sir! The Insult Simulator Vile Monarch · Released | PC, Mac, Linux, Android, iOS | Simulation | 25 lokakuun 2016 | — |
| OK K.O.! Let's Play Heroes Capybara Games · Released | PC, PS4, Xbox One | Action, RPG, Fighting | 01 huhtikuun 2018 | — |
| Okabu Hand Circus · Released | PS3, PSN | Puzzle | 19 lokakuun 2011 | — |
| Okami Clover Studios · Released | PS2, Wii, PS3 | Action, Adventure | 2007 | — |
| Okami HD Clover Studios · Released | PS3, PS4, Xbox One, PC, Nintendo Switch | Action, Adventure | 31 lokakuun 2012 | 9 |
| Okami Sequel Clovers | — | Adventure | TBA | — |
| Okamiden Capcom · Released | Nintendo DS | Adventure | 18 maaliskuun 2011 | 8 |
| Okhlos Coffee Powered Machine · Released | PC, Mac, Linux | Action, Strategy | 18 elokuun 2016 | — |
| Old Man's Journey Broken Rules | PC, iOS, Android, Nintendo Switch | Puzzle, Adventure | — | — |
| Old School Rally Frozen Lake Games · Released | PC | Racing | 19 heinäkuun 2024 | — |
| Old School Runescape Jagex | Mac, PC, iOS, Android | MMORPG | — | — |
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