| Olga Doesn't Die | r148032 | 2026-05-07 |
| Old-Timer | r15573 | 2026-04-21 |
| Old Web Cobwebs | r121442 | 2026-04-21 |
| Old Story | r30039 | 2026-04-21 |
| Old Software | r76980 | 2026-05-30 |
| Old Software | r90053 | 2026-05-14 |
| Old Gay Cats Look at Old Photos - Yuri Game Jam Version | r99899 | 2026-05-14 |
| Old Gay Cats Look at Old Photos | r105783 | 2026-06-04 |
| Old Friends and Public Transport v0.0025 | r88271 | 2026-05-25 |
| Old Church | r91038 | 2026-06-02 |
| Old Church | r90876 | 2026-05-16 |
| Old Church | r91039 | 2026-04-21 |
| Old Church | r54408 | 2026-04-21 |
| Ol'ga Dmitrievna - rut | r152177 | 2026-06-02 |
| Okyakusama!? Kouryaku Taishou wa Achira Desu yo!!! - Trial Edition | r49880 | 2026-06-05 |
| Okyakusama!? Kouryaku Taishou wa Achira Desu yo!!! - Package Edition | r49879 | 2026-06-05 |
| Okyakusama!? Kouryaku Taishou wa Achira Desu yo!!! - Download Edition | r49875 | 2026-06-05 |
| Okusuri Nonde mo Naoranai | r76098 | 2026-06-08 |
| Okusama wa moto Yariman ~Besluted~ | r115139 | 2026-04-21 |
| Okuriya | r148267 | 2026-05-21 |
| Okuri Inu | r7381 | 2026-05-29 |
| Okurete Kita Halloween | r156041 | 2026-05-29 |
| Okunai Hinata Living de Love H | r57591 | 2026-06-09 |
| Okujou no Yurirei-san ~Full Chorus~ Package Edition | r53998 | 2026-06-08 |
| Okujou no Yurirei-san - Popular Edition | r32576 | 2026-06-08 |
| Okujou no Yurirei-san - Download Edition | r41062 | 2026-06-08 |
| Okujou no Yurirei-san | r143770 | 2026-05-22 |
| Okujou de Iinchou ga Dappun Shiteru no o Mokugeki Shite Shimatta Ken | r69119 | 2026-06-05 |
| Okujoo Desu | r153645 | 2026-05-24 |
| Okubyou na Juudenki | r40088 | 2026-05-27 |
| Oku-san, Kane ga Nai nara Karada de Haratte Moraimashou ka? ~Hito no Tsuma-tachi no Ketsu o Narabete Tabekurabe! Netori Kissa Settai!~ Package Edition | r23513 | 2026-06-08 |
| Oku-sama x Oku-sama ~Hanayome wa Joshikousei~ Third Volume | r16775 | 2026-06-08 |
| Oku-sama x Oku-sama ~Hanayome wa Joshikousei~ Second Volume | r16774 | 2026-06-09 |
| Oku-sama x Oku-sama ~Hanayome wa Joshikousei~ First Volume | r16773 | 2026-06-07 |
| Oku-sama x Oku-sama ~Hanayome wa Joshikousei~ DVDPG Edition | r11417 | 2026-05-27 |
| Oku-sama x Oku-sama ~Hanayome wa Joshikousei~ | r11416 | 2026-06-08 |
| Oku-sama wa Zansatsu Shoujo | r35201 | 2026-05-16 |
| Oku-sama wa Taiikudaisei | r89939 | 2026-05-23 |
| Oku-sama wa Onee-chan!? Straight Edition | r55983 | 2026-06-08 |
| Oku-sama wa Moto Yariman 2022 - Trial Edition | r101482 | 2026-06-08 |
| Oku-sama wa Moto Yariman 2022 - DL Edition | r98714 | 2026-05-14 |
| Oku-sama wa Moto Yariman 2022 | r115076 | 2026-06-08 |
| Oku-sama wa Moto Yariman 2022 | r115766 | 2026-06-02 |
| Oku-sama wa Moto Yariman -Besluted- Trial Edition | r53084 | 2026-05-16 |
| Oku-sama wa Moto Yariman -Besluted- Package Edition | r23879 | 2026-06-08 |
| Oku-sama wa Miko? R ~Pretty Fiancee~ | r20587 | 2026-06-02 |
| Oku-sama wa Macho!! - Package Edition | r40329 | 2026-06-08 |
| Oku-sama wa ****gakusei - Download Edition | r153372 | 2026-05-31 |
| Oku-sama no Kaifuku Jutsu - Prologue | r90229 | 2026-06-07 |
| Oku-sama no Chijo Seikatsu ~Otoko wo Motomete Hankagai wo Haikai~ DVDPG | r154721 | 2026-06-03 |