| Gakuen of the Dead | 2014-04-11 | 5.30 (18) |
| Gakuen no Uwasa | 2019-10-05 | - |
| Gakuen no Shuryousha ~Noroshi~ | 2002-05-24 | - (2) |
| Gakuen no Princess | 2023-07-10 | - |
| Gakuen no Kangeki | 2006-01-28 | - |
| Gakuen de Jikan yo Tomare | 2014-04-11 | 6.90 (167) |
| Gakuen de Aegu Boku no Kanojo | 2013-04-12 | - |
| Gakuen Yousei TetraStar | 2009-04-24 | 6.80 (16) |
| Gakuen Utopia Manabi Straight! Kira Kira☆Happy Festa! | 2007-03-29 | - |
| Gakuen Toukou Shashin ~Hentai Seiheki no Mezame...~ | 2004-12-17 | 7.40 (19) |
| Gakuen Toshi Z | 1991-05 | - (2) |
| Gakuen Tokkyuu Hotokenser | 2011-08-06 | 7.90 (62) |
| Gakuen Tengoku ~Kyonyuu de Ikimakuri~ | 2006-04-07 | 6.80 (13) |
| Gakuen Tengoku | 2005-08-14 | - (1) |
| Gakuen Tantei Transparency | 2014-12-28 | 7.40 (5) |
| Gakuen Taimaden Reiko | 1994-10-28 | - (4) |
| Gakuen Taima! Holy x Moly | 2011-06-24 | 7.20 (75) |
| Gakuen Sodom ~Kyoushitsu no Mesu Dorei-tachi~ | 1995-09-08 | 5.60 (7) |
| Gakuen Shojo Gari | 2005-06-10 | - (2) |
| Gakuen Senshi Sailor Fighter | 1994-04-15 | - (1) |
| Gakuen Senkyo ~Seito o Kankin Choukyou, Ana Dorei ni Sareta Seifuku Shoujo~ | 2012-02-01 | - (2) |
| Gakuen Senki | 1988-05 | 5.50 (20) |
| Gakuen Sei Senshi Sailor Knight ~Seigi no Heroine Kanzen Seifuku Manual~ | 2013-04-19 | 7.00 (40) |
| Gakuen Sei Senshi Sailor Knight 2 ~Seigi no Heroine Kanzen Akuochi Manual~ | 2014-01-24 | 7.10 (24) |
| Gakuen Saver Youko | 2007-11-20 | - |
| Gakuen Saimin Reido ~Sakki made, Daikirai Datta Hazu na no ni~ | 2008-12-19 | 7.30 (135) |
| Gakuen Saiingoku ~Kyouki to Haramase no Utage~ | 2016-12-22 | 5.30 (17) |
| Gakuen Rensenki | 2017-10-27 | - (4) |
| Gakuen Ren'ai Chuuihou | 2001-12-21 | - (3) |
| Gakuen Redux | 2005-07-29 | 6.00 (19) |
| Gakuen RPG ~Tou Hikou Seitokaichou~ | 2019-05-30 | 5.40 (5) |
| Gakuen Prince ~Fandisc~ | 2005-02-25 | - (3) |
| Gakuen Pets ~Houkago no Shiikusha~ | 2007-12-21 | - (2) |
| Gakuen Pets 3 ~Seieki Mamire no Toshokan~ | 2009-09-11 | - (2) |
| Gakuen Pets 2 ~Pool Side no Shiiku Katsudou~ | 2008-10-10 | - (1) |
| Gakuen Panopticon | 2022-10-24 | - |
| Gakuen Ojou-sama Kitan | 2000-08-25 | - (4) |
| Gakuen Nai Kyousei Roshutsu | 2015-06-19 | 5.50 (12) |
| Gakuen NTR ~Boku no Shiranai Kanojo no Kao~ | 2013-01-25 | 6.60 (75) |
| Gakuen Monogatari | 1987-11 | - |
| Gakuen Minna no Seishori Gakari ~Dosukebe Houshi Iinkai Pakopako Katsudou Kiroku!~ | 2016-04-01 | 6.70 (51) |
| Gakuen Milk Tea | 2007-05-25 | 6.60 (11) |
| Gakuen Meikyuu Ero Happening! ~Ikuze! Seigi no Dungeon Kouryaku~ | 2011-11-25 | 6.10 (10) |
| Gakuen Lez Panic! ~Kankin Sareta Onnanoko o Sukuu Ohanashi~ | 2023-01-20 | - (4) |
| Gakuen King Bangai Hen -Hidehiko Curry o Tsukuru- | 1998-11-26 | - (2) |
| Gakuen King -Hidehiko Gakkou o Tsukuru- | 1996-06-07 | 6.50 (9) |
| Gakuen K -Wonderful School Days- | 2014-10-30 | 6.70 (55) |
| Gakuen Jigoku Arcadia | 2020-12-23 | - (1) |
| Gakuen Inkitan ~Kaori Tsuki no Shoujo~ | 2022-01-28 | 6.60 (33) |
| Gakuen Injoku Rinbukyoku ~Junketsu no Otome ga Midara na Mesu e to Ochiru made~ | 2012-01-27 | 7.00 (37) |