| Gachi: Christmas Party 🎄 | 2023-01-07 | - |
| Gachimuchi | 2017-11-13 | 5.00 (7) |
| Gachimuchi Chijoku Roudou | 2017-11-16 | - |
| Gachimuchi Rebirth | 2019-01-31 | - (1) |
| Gachimuchi de Dosukebe na Kateikyoushi no Onii-san to Sugosu Haru | 2025-12-04 | - (2) |
| Gachimuchi de Dosukebe na Kateikyoushi no Onii-san to Sugosu Natsu | 2022-10-22 | 6.70 (16) |
| Gachimuchi: Stat' Masterom Podzemelij | 2022-04-10 | 7.30 (7) |
| Gachinko! Bitch Club | 2014-09-26 | 6.80 (107) |
| Gachinko! Bitch Club - Sensation | 2021-07-21 | 6.80 (50) |
| Gadis 1 Milyar Rupiah | 2010-09-01 | 5.70 (87) |
| Gaiden Gaiten | 2005-10-29 | - |
| Gaiken de Shoubu!! | 2002 | - |
| Gaikokujin no Sensei | - | 6.80 (10) |
| Gainax Renzoku Satsujin Jiken (Ero) | 2000-07-14 | - (1) |
| Gainfully Employed | - | - |
| Gaisen! Ichijiku Kanchou! | 2000-09-29 | 6.40 (5) |
| Gajja Hateu | 2023-03-25 | - |
| Gajou Kanraku | 2007-02-18 | - |
| Gakeppuchi Kakeibo | 2002-07-12 | - (2) |
| Gakeppuchi Reijou wa Mukiryoku Akuma de Otome o Sutetai | 2025-08-22 | - (3) |
| Gakeppuchi Reijou wa Mukiryoku Akuma de Otome o Sutetai ～Devil's Nightmare～ | TBA | - |
| Gaki no Chi*po ya Arahen de! | 2008-07-31 | 6.70 (13) |
| Gakkoi 2 ~Unmei Ai wa Inochigake~ | 2009-05-03 | - |
| Gakkoi ~Ai to Noroi to Valentine~ | 2009-12-30 | - |
| Gakkou Ero Fushigi Inran Onna Kyoushi | 2023-09-02 | - (1) |
| Gakkou Mizugi ~Semen Pool de Oyoidara~ | 2008-12-26 | 6.00 (18) |
| Gakkou Nanafushigi 2 | 2000-12-07 | - |
| Gakkou Nanafushigi 4 | 2007-02-13 | - |
| Gakkou Nanafushigi 5 | 2015-12-15 | - |
| Gakkou Nanafushigi ~Koukousei no Hanako-san~ | 2016-06-15 | - |
| Gakkou Nanafushigi ~Shougakkou no Hanako-san~ | 2004-05-13 | - |
| Gakkou Yarashii Kaidan ~Konna Hazukashii Jorei Sasenaide!~ | 2009-03-19 | 6.10 (10) |
| Gakkou de Atta Koii Hanashi | 2008-12-29 | - (1) |
| Gakkou de Atta Kowai Hanashi | 1995-08-04 | 7.60 (23) |
| Gakkou ni Ikou! | 2011-11-21 | - |
| Gakkou ni Ikou!! -Lose One's Heart- | 2002-01-18 | - (1) |
| Gakkou no Kaidan DS | 2008-07-17 | - (3) |
| Gakkou no Seiiki | 2016-11-25 | 6.30 (315) |
| Gakkyuu Gangu | 2008-03-14 | - |
| Gakkyuu Nisshi | 2011 | - |
| Gaku Love ~Wagamama na Ponytail~ | 2003-10-31 | 6.30 (5) |
| Gaku ☆ Ou -It's Heartful Days!!- | 2012-08-10 | 6.90 (50) |
| Gaku ☆ Ou -The Royal Seven Stars- | 2012-01-27 | 7.30 (108) |
| Gakuen 3 ~Karei Naru Etsujoku~ | 2010-08-27 | 7.40 (126) |
| Gakuen Aijoku Sayokyoku ~Owaru Koto no Nai Zetsubou no Utage~ | 2012-11-30 | 6.90 (30) |
| Gakuen Alice ~WakuWaku★Happy Friends~ | 2007-04-19 | - |
| Gakuen Basara | - | - |
| Gakuen Benki | 2017-06-04 | - |
| Gakuen Betrayer ~Himitsu no Seitaiken~ | 2011-02-25 | 6.50 (11) |
| Gakuen Bomber | 1994-04-28 | 5.60 (5) |