| Name |
System |
Subsystem |
Players |
Genre |
Release Date |
| Joushi to Himitsu no 2LDK | Switch | Download Software | 1 | Adventure | May 7, 2020 |
| Judgement 7: Our World Is Ended | Switch | | 1 | Adventure | Feb 28, 2019 |
| Obakeidoro! | Switch | Download Software | 1 - 4 | Action | Aug 1, 2019 |
| Oceanhorn: Monster of Uncharted Seas | Switch | Download Software | 1 | Adventure | Jun 22, 2017 |
| Octopath Traveler | Switch | | 1 | RPG | Jul 13, 2018 |
| Odd Dog and Even Cat | Switch | Download Software | 1 | Action | Mar 17, 2022 |
| Office Lovers | Switch | Download Software | 1 | Adventure | Aug 27, 2020 |
| Of Mice And Sand Revised | Switch | Download Software | | Action | Dec 21, 2017 |
| Oh My God! Yakabami | Switch | Download Software | 1 | Action | Dec 23, 2021 |
| Oita Beppu Mystery Guide Distorted Bamboo Lantern | Switch | Download Software | 1 | Adventure | Jul 7, 2022 |
| Okayu Nyumu | Switch | Download Software | 1 | Adventure | Feb 27, 2025 |
| Okudake Study | Switch | Download Software | 1 | Puzzle | Feb 22, 2024 |
| Okuri Inu | Switch | Download Software | 1 | Adventure | Jul 12, 2018 |
| Olympia Soiree | Switch | Download Software | 1 | Adventure | Apr 16, 2020 |
| Omega-6: The Triangle Stars | Switch | Download Software | 1 - 2 | Action | Jul 25, 2024 |
| Omega Vampire | Switch | | 1 | Adventure | Aug 29, 2019 |
| On Air! | Switch | | 1 | Adventure | Jul 25, 2024 |
| One Piece Kaizoku Musou 3 Deluxe | Switch | | | Action | Dec 21, 2017 |
| One Piece Odyssey | Switch | | 1 | RPG | Jul 25, 2024 |
| One Piece: Unlimited World R Deluxe Edition | Switch | | | Action | Aug 24, 2017 |
| One Way: The Elevator | Switch | Download Software | 1 | Adventure | Mar 31, 2022 |
| Onigiri | Switch | Download Software |  | RPG | Jan 31, 2019 |
| Onima - Sweet Me, Brother | Switch | Download Software | 1 | Adventure | Jul 22, 2021 |
| On The Run: Find The Escaped Criminal | Switch | Download Software | 1 | Puzzle | Mar 16, 2023 |
| Operation Night Strikers | Switch | | 1 - 2 | Shooter | Aug 7, 2025 |
| Order Land | Switch | Download Software | 1 | Action | Sep 28, 2017 |
| Oshiritantei Pupupu Mirai no Meiten Teitojo | Switch | | 1 | Adventure | Nov 4, 2021 |
| Osyaberi! Horijyo! Gekihori Ana Horisuki Uchu Tte Nandeyanen | Switch | Download Software | 1 | Action | Aug 22, 2019 |
| Osyaberi! Horjiyo! | Switch | Download Software | 1 | Action | Mar 8, 2018 |
| Osyaberi！Kakejyo！～Ubawareta Dot Coin o oe！～ | Switch | Download Software | 1 | Action | Sep 13, 2018 |
| Othello | Switch | Download Software | 1 - 2 | Party/Parlor | Mar 3, 2017 |
| Otoko Cross: Pretty Boys Klondike Solitaire | Switch | Download Software | 1 | Party/Parlor | Dec 22, 2022 |
| OU | Switch | Download Software | 1 | Action | Year 2021 |
| Ouchi de Rilakkuma: Rilakkuma ga Ouchi ni Yattekita | Switch | | 1 | Simulation | Nov 5, 2020 |
| Our Fantasy Hero Quest | Switch | Download Software | 1 - 4 | Party/Parlor | Oct 13, 2022 |
| Our Flick Erasers 3 | Switch | Download Software | 1 - 6 | Puzzle | Apr 27, 2023 |
| Our Flick Erasers 3 Online | Switch | Download Software | 1 | Action | Dec 7, 2023 |
| Our Flick Erasers - New Semester | Switch | Download Software | 1 - 6 | Action | Aug 26, 2021 |
| Our Ninja World | Switch | Download Software | 1 - 4 | Action | Apr 28, 2022 |
| Our Summer Festival | Switch | Download Software | 1 - 4 | Party/Parlor | Jul 1, 2021 |
| Our Summer Sports | Switch | Download Software | 1 - 4 | Party/Parlor | Jul 7, 2022 |
| Our Winter Sports | Switch | Download Software | 1 - 4 | Party/Parlor | Feb 3, 2022 |
| Overcooked: Special Edition | Switch | Download Software | 1 - 4 | Action | Oct 11, 2017 |
| Over RequiemZ | Switch | Download Software | 1 | Adventure | Apr 17, 2025 |
| OverTop | Switch | | 1 | Racing | Apr 27, 2017 |
| OZMAFIA -Vivace- | Switch | Download Software | 1 | Adventure | Aug 27, 2020 |
| Tokyo 2020 Olympics: The Official Game | Switch | | 1 - 4 | Sports | Jul 25, 2019 |
| Which Shape is Different? | Switch | Download Software | 1 | Puzzle | Mar 13, 2025 |
