| Open Heart: Second Year | r66538 | 2026-04-21 |
| Open Heart: Book 1 | r66537 | 2026-04-21 |
| Open DayS | r2670 | 2026-05-16 |
| Oose no Mama ni ★ Goshujin-sama! - Download Edition | r20387 | 2026-05-15 |
| Oops, a Cannibal Got Your Nose! | r113897 | 2026-05-13 |
| Oops, I said Yes?! | r80268 | 2026-04-21 |
| Oops! All Gyarus! | r121604 | 2026-04-21 |
| Oona, The Heartbroken | r112720 | 2026-05-16 |
| Ookiku Sumiwataru, Ano Uchuu e - Pre-trial disc 3 | r81611 | 2026-05-16 |
| Ookiku Sumiwataru, Ano Uchuu e - Mission 4 | r81613 | 2026-05-17 |
| Ookii Koto wa H na Koto Da! - Koushinchou Onee-san-tachi to Bukkake Harem Seikatsu Trial Edition | r84617 | 2026-05-11 |
| Ookii Koto wa H na Koto Da! - Koushinchou Onee-san-tachi to Bukkake Harem Seikatsu - Package Edition | r83225 | 2026-05-11 |
| Ookamikakushi - Special Edition | r4641 | 2026-05-16 |
| Ookami-san no Ongaeshi? | r25269 | 2026-05-11 |
| Ookami to Chocolate | r116846 | 2026-05-06 |
| Ookami to Akai Mangetsu | r140667 | 2026-05-16 |
| Ookami Shounen wa Otoko no Ko ~Kyobou na Josou Ookami Shounen ga Ore ni Natsuku Made~ Trial Edition | r37913 | 2026-05-17 |
| Ookami Shoujo to Issho Christmas Special Edition | r61446 | 2026-04-21 |
| Ookami Shoujo to Issho | r57786 | 2026-04-21 |
| Ookami Shoujo to Issho | r60163 | 2026-04-21 |
| Ookami Shoujo to Issho | r57234 | 2026-04-21 |
| Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku- Package Edition | r5601 | 2026-05-15 |
| Ookami Okami - Early Demo | r137887 | 2026-04-21 |
| Ookami Okami - Demo | r142434 | 2026-04-21 |
| Ookami Okami | r137888 | 2026-05-14 |
| Ookami Levi ni Taberarete - Trial Edition | r33311 | 2026-05-07 |
| Ooe Demo | r148246 | 2026-05-08 |
| Ooe -Complete Edition- | r129179 | 2026-05-08 |
| Ooe - Trial Edition | r125536 | 2026-05-16 |
| Ooe | r138106 | 2026-05-08 |
| Onzoushi Mitsugi Mazoka Keikaku | r121120 | 2026-04-21 |
| Onyx Heart | r119843 | 2026-05-16 |
| Onyanyokotachi ni Panpan' Okasareru Ossan ~Gyaku Rape 100%! PeniBan, Spanking, Kotobazeme, Shuuchi Satsuei, Hentai Rankou! Aa Konna Hazu ja Nakatta no ni......~ Trial Edition | r38556 | 2026-05-17 |
| Onyanyokotachi ni Panpan' Okasareru Ossan ~Gyaku Rape 100%! PeniBan, Spanking, Kotobazeme, Shuuchi Satsuei, Hentai Rankou! Aa Konna Hazu ja Nakatta no ni......~ Package Edition | r33764 | 2026-05-17 |
| Ontomo | r31096 | 2026-05-12 |
| Onsoku Hishou Sonic Mercedes - Low Price Edition | r20649 | 2026-05-05 |
| Onsen no Otokoyu de Otoko o Asaru Loli Bitch - Trial Edition | r90512 | 2026-05-17 |
| Onsen Mimizu Geisha | r19153 | 2026-05-06 |
| Onsen Kareshi - Remake Edition | r99101 | 2026-05-14 |
| Onsen Kareshi - First Press Edition | r22955 | 2026-05-10 |
| Onsen Kareshi - Download Edition | r22619 | 2026-05-08 |
| Onsen Kankou Yukemuri Chijou | r13426 | 2026-05-10 |
| Onoue-sanchi no Etsuraku Seikatsu - Package Edition | r5295 | 2026-05-07 |
| Onnasamurai Tsubaki ~Youma Ningun no Yabou o Soshi Seyo!~ | r148111 | 2026-05-17 |
| Onna no Ko wa Do S na Hentai de Dekiteiru - Trial Edition | r40212 | 2026-05-15 |
| Onna no Ko wa Do S na Hentai de Dekiteiru | r39912 | 2026-05-17 |
| Onna no Ko no Shikumi | r18127 | 2026-05-07 |
| Onna ni Saserareta Ore ga Osananajimi no Kanojo ni Naru Nante... ~♂×TS wa, Ore!?~ Package Edition | r74241 | 2026-05-16 |
| Onna ga Muragaru Kaosu Bi-chi Feromon o Makichirasu Doutei Otoko ga Neriaruku! | r145917 | 2026-05-15 |
| Onna Yuusha Party no Higeki ~Sui Tsukusareru Energy Chibusa Wakasa~ | r153293 | 2026-05-17 |