Releases – Nintendo Switch – O – Games starting with “O”
Total amount of games; 173
- O—O
- OBAKEIDORO!
- Observer
- Occult Interrogation: The ritual of little nightmares
- Occultism Interrogation: The ritual of little nightmares
- Ocean Animals Puzzle – Preschool Animal Learning Puzzles Game for Kids & Toddlers
- Ocean’s Heart
- Oceanhorn – Monster of Uncharted Seas
- Oceanhorn 2: Knights of the Lost Realm
- OctaFight
- Octahedron: Transfixed Edition
- Octocopter: Double or Squids
- Octodad: Dadliest Catch
- Octogeddon
- OCTOPATH TRAVELER
- OCTOPATH TRAVELER II
- Odallus: The Dark Call
- Oddmar
- Oddworld: Munch’s Oddysee
- Oddworld: Stranger’s Wrath
- Odium to the Core
- Odysseus Kosmos and his Robot Quest
- OF MICE AND SAND -REVISED-
- Of Tanks and Demons III
- Off And On Again
- Off The Road Unleashed
- Office Lovers
- Office Simulator
- Offroad Driving Simulator4x4: Trucks & SUV Trophy
- Offroad Mini Racing
- Offroad Night Racing
- Offroad Racing – Buggy X ATV X Moto
- Ogre: Console Edition
- Oh My Godheads: Party Edition
- Oh!Edo Towns
- Oh…Sir! The Hollywood Roast
- Oh…Sir! The Insult Simulator
- OK K.O.! Let’s Play Heroes
- ŌKAMI™ HD
- Okinawa Rush
- OkunoKA
- OkunoKA Madness
- Old Coin Pusher Friends
- Old Man’s Journey
- Old School Musical
- Old School Racer 2
- Old School RPG Bundle
- Olija
- Oliver’s Adventures in the Fairyland
- OlliOlli World
- OlliOlli: Switch Stance
- Olympia Soirée
- Olympic Basketball
- Olympic Boxing
- Olympic Games Tokyo 2020 – The Official Video Game™
- Olympic Table Tennis
- Om Nom: Coloring, Toons & Puzzle
- Om Nom: Run
- Omega Labyrinth Life
- Omega Strike
- Omen Exitio: Plague
- Omensight: Definitive Edition
- OMG Police – Car Chase TV Simulator
- OMG Zombies!
- OMNO
- OMORI
- OmoTomO
- Omvorm
- On Your Tail™
- One Deck Dungeon
- One Dog Story
- One Escape
- One Eyed Kutkh
- One Gun Guy
- One Hand Clapping
- One Last Memory
- One Last Memory – Reimagined
- One Line Coloring
- One More Dungeon
- One Night Stand
- One Person Story
- ONE PIECE: PIRATE WARRIORS 3 – Deluxe Edition
- ONE PIECE: PIRATE WARRIORS 4
- One Step From Eden
- One Strike
- One Way Heroics Plus
- One-Eyed Lee and the Dinner Party
- One-Way Ticket
- Oneiros
- OneShot: World Machine Edition
- Onigiri
- Oniken: Unstoppable Edition
- Oniken: Unstoppable Edition & Odallus: The Dark Call Bundle
- Onimusha: Warlords
- ONINAKI
- Oniria Crimes
- Onirike
- Ooblets
- oOo: Ascension
- Ooops! 2
- Operation Hardcore
- Operation Pig
- Operation Zeta
- Operencia: The Stolen Sun
- OPUS: Echo of Starsong – Full Bloom Edition
- OPUS: Rocket of Whispers
- OPUS: The Day We Found Earth
- Orangeblood
- Orbals
- Orbibot
- orbit.industries
- Orbitblazers
- Orbt XL
- Ord.
- Ori and the Blind Forest: Definitive Edition
- Ori and the Will of the Wisps
- origamihero games 2D Platformer Collection
- Orn: The Tiny Forest Sprite
- OS Omega
- OshiRabu: Waifus Over Husbandos + Love･or･die
- Osyaberi! Puzzle Chigatan ～Spot the Differences with Everyone～
- Othercide
- Otherworldly
- Otokomizu
- Otti: The House Keeper
- Otto
- OTTTD: Over The Top Tower Defence
- Our After-School Playzone
- Our Flick Erasers
- Our Ninja World
- Our Summer Festival
- Our Summer Sports
- Our Two Bedroom Story
- Our Winter Sports
- Our World Is Ended.
- Out of Line
- Out of Space: Couch Edition
- Out of The Box
- Out There: Ω The Alliance
- Outbreak
- Outbreak Lost Hope
- Outbreak The Nightmare Chronicles
- Outbreak: Contagious Memories
- Outbreak: Endless Nightmares
- Outbreak: Epidemic
- Outbreak: The New Nightmare
- Outbuddies DX
- Outer Wilds
- Outlast 2
- Outlast: Bundle of Terror
- Outpost Delta
- Over the Alps
- Overboard!
- Overcooked: Special Edition
- Overcooked! 2
- Overcooked! All You Can Eat
- Overdriven Reloaded: Special Edition
- Overland
- Overlanders
- OVERLORD: ESCAPE FROM NAZARICK
- OVERPASS™
- Override 2: Super Mech League
- Override: Mech City Brawl – Super Charged Mega Edition
- Overrogue
- Overwatch 2: Watchpoint pack
- Overwatch: Legendary Edition
- Overwatch® 2
- OVERWHELM
- OVIVO
- Owlboy
- OXENFREE II: Lost Signals
- Oxide Room 104
- Oxyjet