| Only One 2.2 | r41249 | 2026-04-21 |
| Only One 2 ~Naomi Ai no Inori ga Todoku Toki~ | r20630 | 2026-05-08 |
| Only One | r33571 | 2026-05-16 |
| Only One | r28552 | 2026-04-21 |
| Only If... | r69412 | 2026-04-21 |
| Only I Have Skills - Volume 1 | r89412 | 2026-05-16 |
| Only Girl in High School | r79908 | 2026-05-16 |
| Only Dance! | r148696 | 2026-05-12 |
| Only Dance! | r136622 | 2026-04-21 |
| Online Obsession - Demo | r132298 | 2026-04-21 |
| Online Obsession | r132299 | 2026-04-21 |
| Online Love - Demo | r58523 | 2026-04-21 |
| Online Friends - Demo | r106917 | 2026-04-21 |
| Online @ The Perfect Time - Demo | r112279 | 2026-04-21 |
| Oniyome: Oni Musume o Yome ni Moratte Nakadashi Haramase Kozukuri - Regular Edition | r55959 | 2026-05-16 |
| Onitsubaki 2 ~the end of the love~ | r120587 | 2026-05-11 |
| Onitama - Reprint Edition | r20629 | 2026-05-16 |
| Onitama | r20628 | 2026-05-06 |
| Onirio | r148420 | 2026-04-21 |
| Onikirimaru ~Kochou Ranbu Taimain Den~ Download Edition | r17261 | 2026-05-17 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? - Third Person Speech Patch | r66501 | 2026-05-16 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? - Mosaics Restoration Patch | r66481 | 2026-05-09 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? - Censored Edition | r60372 | 2026-05-16 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? - 18+ Patch | r66483 | 2026-05-05 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? (Deepl) | r121193 | 2026-04-21 |
| Onii♥️Kiss: Onii-chan, Where's My Kiss? | r66482 | 2026-05-06 |
| Oniichan Continue! Yuuri to Plus Make Love - Download Edition | r145897 | 2026-05-17 |
| Onii-chan, Watashi Mitai na Manaita Hinnyuu no Imouto ni Ashikoki Sarete Kanjichaun Da. Hentai Da ne. Dohentai★ | r130448 | 2026-04-21 |
| Onii-chan, Oshiete... ~Gimai to Himitsu no Hoken Jisshuu~ DVDPG | r86305 | 2026-05-15 |
| Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2 | r51690 | 2026-05-15 |
| Onii-chan, Migite no Shiyou o Kinshi Shimasu! - Trial Edition | r36181 | 2026-05-06 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? - Hajimete Onii-chan Pack - Download Edition | r66872 | 2026-05-05 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? - Hajimete Onii-chan Pack | r48589 | 2026-05-16 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? | r48061 | 2026-05-17 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? | r121826 | 2026-04-21 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? | r104421 | 2026-04-21 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka? | r116365 | 2026-04-21 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - Uncensor Patch | r121840 | 2026-05-05 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - Trial Edition | r46204 | 2026-05-17 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - Popular Edition | r54241 | 2026-05-07 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - Download Edition | r48785 | 2026-05-17 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - DVDPG | r142385 | 2026-05-05 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? - DVD-PG Edition the BEST | r142388 | 2026-05-07 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? | r142376 | 2026-05-16 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? | r138963 | 2026-05-16 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? | r43986 | 2026-05-07 |
| Onii-chan, Kiss no Junbi wa Mada Desu ka? | r119324 | 2026-05-06 |
| Onii-chan, Erande yo! ~Kyuu ni Kawaii Mitsugo no Imouto ga Yattekite Chou Yabai~ Package Edition | r50583 | 2026-05-17 |
| Onii-chan, Ecchi Shiyo? ~Imouto no Seiyoku ga Tsuyo Sugite...~ Package Edition | r125582 | 2026-05-15 |
| Onii-chan, Asa made Zutto Gyutte Shite! Yoru Made Motto Ecchi Shite! - DVD-PG | r142382 | 2026-05-16 |