| Reimei no Gakuen | 2021-10-04 | 6.90 (18) |
| Reimei no Desire | 2017-01-06 | - |
| Reimei Paranoia -Kugutsu no Ito- | 2017-06-08 | - |
| Reimei Paranoia -Kagami no Ori- | 2016-05-13 | - |
| Reilachue | 2003-07-15 | - |
| Reiko -Torawareshi Onna Sousain- | 2012-02-10 | 6.50 (12) |
| Reiko | - | 5.90 (12) |
| Reika no Yakata ~Saimin Yuugi e no Shoutaijou~ | 2014-03-22 | 6.40 (85) |
| Reika Mission | 2026-01-17 | - (1) |
| Reika Mesuinu Choukyou ~xx ni Okasarete...~ | 2007-06-08 | 6.30 (67) |
| Reika Final ~Juuetsu no Kioku~ | 2017-04-28 | 6.70 (57) |
| Reijuu no Acolyte Lufia | 2026-04-24 | 6.10 (13) |
| Reijuu Otogizoushi: Wakaba Hen | 2019-08-11 | - |
| Reijuu Otogizoushi: Kureha Hen | 2021-07-24 | - |
| Reijuu Otogizoushi: Iroha Hen | 2017-12-31 | - |
| Reijuu Hitozuma Agent Shion ~Sennyuu Sousakan vs Sennou Sousakan~ | 2023-10-27 | 6.70 (68) |
| Reijuu Hikan ~ Ikunyuushu - Succubus-tachi no Matsuten | 2003-08-29 | - |
| Reijuu - Twin Road | 1996-01-19 | 6.40 (5) |
| Reijou no Kangoku | 2009-07-31 | 6.80 (18) |
| Reijou no Himitsu | 2011-01-28 | 5.50 (41) |
| Reijou Trader ~Koukan Torihiki~ | 2007-08-10 | - (2) |
| Reijou Trader Past ~A Green Mail~ | 2007-10-19 | - (2) |
| Reijou Sadistic Gekokujou Conspiracy | 2010-05-28 | 6.00 (31) |
| Reijou Monogatari | 1995-04-28 | - (4) |
| Reijou Marie ~Boshi Jutai Bansankai~ | 2004-02-19 | 5.30 (23) |
| Reijou Maid Chizuru | 2012-09-07 | 5.80 (10) |
| Reijou Kyoushi Eiko "Inbaku Sekkan" | 2008-05-03 | - |
| Reijou Kanritou ~Seifuku Shoujo-tachi no Sakunyuu Reizokuki~ | 2020-12-25 | 7.60 (143) |
| Reijou Jikenbo | 2019-12-31 | 5.70 (7) |
| Reijou Gakuen ~Rengoku no Gakusha~ | 2004-10-29 | 6.80 (14) |
| Reijou Gakuen 2 ~Shigyaku no Hanazono~ | 2008-01-25 | 7.10 (11) |
| Reijou Club ~Dajoku no Ryoshuu-tachi~ | 2006-07-07 | - (4) |
| Reijou Caster 2 | 2002-12-20 | 7.10 (15) |
| Reijoku no Yakata ~Innen Go Shimai Juukanki~ | 2009-03-27 | 6.80 (31) |
| Reiin ~Amaoto ni Majiru Shoujo no Kyousei~ | 2013-10-11 | 6.20 (14) |
| Reihi Sousou - The Knight of Ellewsmille | 2006-01-09 | - (1) |
| Reigning Passions | 2019-09-21 | 6.60 (7) |
| Reigning | - | - (2) |
| Reign | 2003-10-10 | - |
| Reigen Date Game | - | - |
| Reigen Arataka Dating Simulator | 2024-10-11 | - (1) |
| Reifu no Dorei 2 ~Muchi Muchi Osanazuma Hen~ | 2010-08-14 | - |
| Rei-do First Window | 2001 | - |
| Rei-Nana | 2006-12-22 | 6.00 (5) |
| Rei-Jin-G-Lu-P | 2015-12-03 | 8.00 (3471) |
| Rei Ayanami - Angel of Sex | 2010-05-05 | 4.70 (30) |
| Rei | 2013-04-07 | 6.60 (123) |
| Rehearsal Unheard | - | - |
| Regular Maintenance is Required | 2025-07-13 | - |
| Regret Snow | 2013-06-21 | - |