| Omakase! Obenkyou☆Sisters - DVDPG | r13026 | 2026-05-29 |
| Omae wa Juujin Niku Benki ~Tanezuke Mugen Loop~ Package Edition | r25584 | 2026-05-30 |
| Omae wa Juujin Niku Benki ~Tanezuke Mugen Loop~ Download Edition | r25585 | 2026-06-05 |
| Omae wa Juujin Niku Benki ~Tanezuke Mugen Loop~ | r104073 | 2026-06-07 |
| Omae no Tsuma wa, Ore no Inran Niku Yome ~Otonari-san wa Yokkyuu Fuman Deshita~ Download Edition | r50172 | 2026-05-24 |
| Omae no Pantsu wa Nani-iro da!? | r15939 | 2026-05-19 |
| Omae no Pantsu wa Nani-iro da!? | r151688 | 2026-04-21 |
| Omae no Onna o Netotteyaru ~Mukashi Yatta Onna wa Ima wa Hakui no Tenshi. Danna no Mae de Kokoro mo Shintai mo Moteasonde Netoru~ Package Edition | r24213 | 2026-05-30 |
| Omae no Onna o Netotteyaru ~Mukashi Yatta Onna wa Ima wa Hakui no Tenshi. Danna no Mae de Kokoro mo Shintai mo Moteasonde Netoru~ DVDPG | r32732 | 2026-05-29 |
| Omae no Novel Game ga Kansei Shinai Riyuu 2 - Package Edition | r147358 | 2026-05-30 |
| Omae no Novel Game ga Kansei Shinai Riyuu - Download Edition | r147361 | 2026-05-29 |
| Omae no Natsuyasumi - Download Edition | r48372 | 2026-05-30 |
| Omae no Mono wa Ore no Mono ~Otto ni wa Misenai Midara na Kao o Otouto ni Sarasu Kyonyuu Wakazuma~ Download Edition | r65963 | 2026-05-29 |
| Omae no Mono wa Ore no Mono ~Otto ni wa Misenai Midara na Kao o Otouto ni Sarasu Kyonyuu Wakazuma~ DVDPG | r153310 | 2026-05-19 |
| Omae no Mono wa Ore no Mono ~Otto ni wa Misenai Midara na Kao o Otouto ni Sarasu Kyonyuu Wakazuma~ | r114256 | 2026-06-10 |
| Omae no Mono wa Ore no Mono - Price Revised Edition | r25931 | 2026-05-30 |
| Omae no Mono wa Ore no Mono - Budget Edition | r152573 | 2026-05-27 |
| Omae no Mama o Share Shiyou ze ~Musuko e no Ijimekko-tachi ni Otosareru Bibo~ Package Edition | r44921 | 2026-06-07 |
| Omae no Mama o Share Shiyou ze ~Musuko e no Ijimekko-tachi ni Otosareru Bibo~ Download Edition | r44920 | 2026-06-07 |
| Omae no Kaa-chan, Mesu Buta Niku Benki ni Nattenzo? | r17971 | 2026-05-30 |
| Omae no Kaa-chan, Ii Onna Da yo na. - Package Edition | r55328 | 2026-05-24 |
| Omae no Kaa-chan, Ii Onna Da yo na. - Download Edition | r55329 | 2026-05-29 |
| Omae no Kaa-chan, Ii Onna Da yo na. | r73797 | 2026-05-30 |
| Omae no Kaa-chan, Ii Onna Da yo na. | r119310 | 2026-05-30 |
| Omae no Kaa-chan, Ii Onna Da yo na | r79684 | 2026-05-25 |
| Omae ga Motetaitte Iu kara Daro!! Okawari (1) | r97055 | 2026-05-12 |
| Omae ga Motetaitte Iu kara Daro!! | r103860 | 2026-05-22 |
| Omae ga Dareka o Umeru Yume o Miru | r150683 | 2026-05-30 |
| Omae de Ii kara Choco ga Hoshii! -BlackLoveromance- | r100734 | 2026-06-06 |
| Oma Mote!! Okawari - Free Edition | r117534 | 2026-05-29 |
| OmOneko | r105243 | 2026-06-09 |
| OmOneko | r143183 | 2026-05-06 |
| Olympus Rising: Ragnarok | r142353 | 2026-05-27 |
| Olympus Rising | r136555 | 2026-06-08 |
| Olympia de Wanyan - Regular Edition | r81786 | 2026-05-31 |
| Olympia de Wanyan - Limited Edition | r99845 | 2026-05-30 |
| Olympia Soirée - Package Edition | r76178 | 2026-05-13 |
| Olympia Soirée - Download Edition | r95963 | 2026-04-21 |
| Olympia Soiree for iOS & Android | r78643 | 2026-05-30 |
| Olympia Soiree Catharsis DL Edition | r141808 | 2026-05-29 |
| Olympia Soiree - Limited Edition | r69184 | 2026-05-29 |
| Olympia Soiree - Download Edition | r69185 | 2026-05-14 |
| Olympia Soiree (demo) | r87930 | 2026-05-19 |
| Olympia Soiree | r86932 | 2026-05-05 |
| Ollyeoda Bwa, Bamhaneurui Byeoreul : Interstellar Focus | r127064 | 2026-06-05 |
| Olivine Lights | r134475 | 2026-06-05 |
| Olivia's Bad Day | r122505 | 2026-06-08 |
| Olivia's Bad Day | r122504 | 2026-05-31 |
| Olivia Dwight | r103854 | 2026-04-21 |
| Oliver Renhelf | r51278 | 2026-04-21 |