| Nursery☆Rhyme |
| 2005-10-21 | ♥ | | Nursery☆Rhyme - Trial Edition | | Pub & Dev | | |
| 2005-11-25 | ♥18+ | | Nursery☆Rhyme - First Press Limited Edition | | Pub & Dev | | 3 |
| 2010-08-06 | ♥18+ | | Nursery☆Rhyme - Regular Edition ~Lump of Sugar Collection Vol.1~ | | Pub & Dev | | 3 |
| Itsuka, Todoku, Ano Sora ni. |
| 2006-12-17 | ♥All | | Itsuka, Todoku, Ano Sora ni. - Trial Edition | | Pub & Dev | | |
| 2007-01-26 | ♥18+ | | Itsuka, Todoku, Ano Sora ni. - First Press Edition | | Pub & Dev | | 3 |
| 2007-10-25 | ♥15+ | | Itsuka, Todoku, Ano Sora ni. ~You no Michi to Hi no Tasogare to~ Limited Edition | | Pub & Dev | | 3 |
| 2007-10-25 | ♥15+ | | Itsuka, Todoku, Ano Sora ni. ~You no Michi to Hi no Tasogare to~ Regular Edition | | Dev | | 2 |
| 2008-12-18 | ♥15+ | | Itsuka, Todoku, Ano Sora ni. ~You no Michi to Hi no Tasogare to~ Russell Games Best | | Pub | | 2 |
| 2014-11-07 | ♥18+ | | Itsuka, Todoku, Ano Sora ni. - Download Edition (drm) | | Pub & Dev | | 6 |
| 2018-10-26 | ♥18+ | | Lump of Sugar Collection - Itsuka, Todoku, Ano Sora ni. | | Pub & Dev | | 2 |
| Tayutama -Kiss on My Deity- |
| 2008-04-25 | ♥18+ | | Tayutama -Kiss on My Deity- Trial Edition | | Pub & Dev | | |
| 2008-07-11 | ♥18+ | | Tayutama -Kiss on My Deity- First Press Limited Edition | | Pub & Dev | | 3 |
| 2009-07-10 | ♥18+ | | Tayutama -Kiss on My Deity- Regular Edition | | Pub & Dev | | 3 |
| 2009-11-07 | ♥17+ | | Tayutama -Kiss on My Deity- First Press Limited Edition | | Dev | | 2 |
| 2009-11-07 | ♥17+ | | Tayutama -Kiss on My Deity- Regular Edition | | Dev | | 3 |
| 2015-07-10 | ♥18+ | | Tayutama -Kiss on My Deity- Download Edition | | Pub & Dev | | |
| 2016-08-26 | ♥18+ | | Tayutama -Kiss on My Deity- Windows 10 Support Edition | | Pub & Dev | | 2 |
| 2016-08-26 | ♥18+ | | Tayutama -Kyo~zon Double Package- | | Pub & Dev | | 2 |
| 2016-08-26 | ♥18+ | | Tayutama -Kyo~zon Double Package- Download Edition | | Pub & Dev | | 2 |
| 2024-12-20 | ♥18+ | | Lump of Sugar collection "Tayutama -Kiss on My Deity-" | | Pub & Dev | | 3 |
| Tayutama -It's Happy Days- |
| 2009-05-29 | ♥18+ | | Tayutama -It's Happy Days- Limited Edition | | Pub & Dev | | 4 |
| 2009-05-29 | ♥18+ | | Tayutama -It's Happy Days- Regular Edition | | Pub & Dev | | 4 |
| 2015-08-07 | ♥18+ | | Tayutama -It's Happy Days- Download Edition | | Pub & Dev | | |
| 2016-08-26 | ♥18+ | | Tayutama -It's Happy Days- Windows 10 Support Edition | | Pub & Dev | | 2 |
| 2016-08-26 | ♥18+ | | Tayutama -Kyo~zon Double Package- | | Pub & Dev | | 2 |
| 2016-08-26 | ♥18+ | | Tayutama -Kyo~zon Double Package- Download Edition | | Pub & Dev | | 2 |
| Prism Rhythm |
| 2010-04-02 | ♥18+ | | Prism Rhythm - Web Trial Edition | | Pub & Dev | | |
| 2010-05-28 | ♥18+ | | Prism Rhythm - First Press Limited Edition | | Pub & Dev | | 3 |
| 2014-12-12 | ♥18+ | | Prism Rhythm - Download Edition | | Pub & Dev | | 6 |
| Hello,good-bye |
| 2010-10-16 | ♥All | | Hello,good-bye - Web Trial Edition | | Pub & Dev | | |
| 2010-12-17 | ♥18+ | | Hello,good-bye - First Press Limited Edition | | Pub & Dev | | 4 |
| 2015-12-04 | ♥18+ | | Hello,good-bye - Download Edition | | Pub & Dev | | 2 |
| 2019-04-26 | ♥18+ | | Lump of Sugar Collection "Hello,good-bye" | | Pub & Dev | | 3 |
| Diamic Days |
| 2011-06-16 | ♥18+ | | Diamic Days - Trial Edition | | Pub & Dev | | |
| 2011-08-26 | ♥18+ | | Diamic Days - First Press Limited Edition | | Pub & Dev | | 5 |
| 2015-06-12 | ♥18+ | | Diamic Days - Download Edition | | Pub & Dev | | 2 |
| Gaku ☆ Ou -The Royal Seven Stars- |
| 2011-12-16 | ♥18+ | | Gaku ☆ Ou -The Royal Seven Stars- Entrance - Trial Edition | | Pub & Dev | | |
| 2012-01-06 | ♥18+ | | Gaku ☆ Ou -The Royal Seven Stars- Himehajime - Trial Edition | | Pub & Dev | | |
| 2012-01-20 | ♥18+ | | Gaku ☆ Ou -The Royal Seven Stars- Koibito Ecchi - Trial Edition | | Pub & Dev | | |
| 2012-01-27 | ♥18+ | | Gaku ☆ Ou -The Royal Seven Stars- First Press Edition | | Pub & Dev | | 3 |
| 2013-03-28 | ♥17+ | | Gaku ☆ Ou -The Royal Seven Stars- + Meteor - Limited Edition | | Dev | | 2 |
| 2013-03-28 | ♥17+ | | Gaku ☆ Ou -The Royal Seven Stars- + Meteor - Regular Edition | | Dev | | 3 |
| 2015-04-10 | ♥18+ | | Gaku ☆ Ou -The Royal Seven Stars- Download Edition (drm) | | Pub & Dev | | 2 |
| Gaku ☆ Ou -It's Heartful Days!!- |
| 2012-08-10 | ♥18+ | | Gaku ☆ Ou It’s Heartful Days!! | | Pub & Dev | | 4 |
| 2015-05-08 | ♥18+ | | Gaku ☆ Ou It’s Heartful Days!! - Download Edition (drm) | | Pub & Dev | | 2 |
| Hanairo Heptagram |
| 2012-09-14 | ♥18+ | | Hanairo Heptagram - Web Trial Edition | | Pub & Dev | | |
| 2012-10-26 | ♥18+ | | Hanairo Heptagram - First Press Limited Edition | | Pub & Dev | | 5 |
| 2015-11-06 | ♥18+ | | Hanairo Heptagram - Download Edition | | Pub & Dev | | 2 |
| 2019-11-29 | ♥18+ | | Lump of Sugar Collection "Hanairo Heptagram" | | Pub & Dev | | 4 |
| Magical Charming! |
| 2013-04-19 | ♥18+ | | Magical Charming! - Trial Edition | | Pub & Dev | | |
| 2013-05-10 | ♥18+ | | Magical Charming! - Chokotto Ecchi Trial Edition | | Pub & Dev | | |
| 2013-05-31 | ♥18+ | | Magical Charming! - First Press Limited Starter Pack Bundled Edition | | Pub & Dev | | 4 |
| 2015-03-13 | ♥18+ | | Magical Charming! - Download Edition | | Pub & Dev | | 2 |
| 2020-03-20 | ♥ | | Moka Meilian! Ling zhi Biannianshi | | Pub | | 3 |
| Sekai to Sekai no Mannaka de |
| 2013-11-08 | ♥18+ | | Sekai to Sekai no Mannaka de - Trial Edition | | Pub & Dev | | |
| 2013-12-30 | ♥18+ | | Sekai to Sekai no Mannaka de - Trial Edition 2 | | Pub & Dev | | |
| 2014-01-31 | ♥18+ | | Sekai to Sekai no Mannaka de - First Press Limited Edition | | Pub & Dev | | 5 |
| 2015-10-02 | ♥18+ | | Sekai to Sekai no Mannaka de - Download Edition | | Pub & Dev | | 2 |
| 2020-03-27 | ♥18+ | | Lump of Sugar Collection "Sekai to Sekai no Mannaka de" | | Pub & Dev | | 3 |
| Unmei Senjou no Phi |
| 2014-08-08 | ♥18+ | | Unmei Senjou no Phi - Trial Edition | | Pub & Dev | | |
| 2014-10-31 | ♥18+ | | Unmei Senjou no Phi - First Press Limited Edition | | Pub & Dev | | 5 |
| 2015-09-18 | ♥18+ | | Unmei Senjou no Phi - Download Edition | | Pub & Dev | | 2 |
| 2020-01-31 | ♥18+ | | Lump of Sugar Collection "Unmei Senjou no Phi" | | Pub & Dev | | 5 |
| Rensou Relation |
| 2015-04-10 | ♥18+ | | Rensou Relation - Trial Edition | | Pub & Dev | | |
| 2015-05-01 | ♥18+ | | Rensou Relation - Trial Edition 2 | | Pub & Dev | | |
| 2015-05-29 | ♥18+ | | Rensou Relation - First Press Limited Edition | | Pub & Dev | | 6 |
| 2015-08-21 | ♥18+ | | Rensou Relation - Download Edition | | Pub & Dev | | 3 |
| 2022-03-25 | ♥18+ | | Lump of Sugar Collection - Rensou Relation | | Pub & Dev | | |
| Kodomo no Asobi |
| 2015-10-23 | ♥18+ | | Kodomo no Asobi - Trial Edition | | Pub & Dev | | |
| 2015-11-27 | ♥18+ | | Kodomo no Asobi - First Press Limited Edition | | Pub & Dev | | 4 |
| 2016-02-12 | ♥18+ | | Kodomo no Asobi - Download Edition | | Pub & Dev | | 2 |
| Tayutama 2 -you're the only one- |
| 2016-04-15 | ♥18+ | | Tayutama 2 -you're the only one- Web Trial Edition | | Pub & Dev | | |
| 2016-04-21 | ♥18+ | | Tayutama 2 -you're the only one- Tech Gian Trial Edition | | Pub & Dev | | |
| 2016-08-05 | ♥18+ | | Tayutama 2 -you're the only one- Enhancement Demonstration Trial Edition | | Pub & Dev | | |
| 2016-09-23 | ♥18+ | | Tayutama 2 -you're the only one- First Press Limited Edition | | Pub & Dev | | 4 |
| 2017-02-03 | ♥18+ | | Tayutama 2 -you're the only one- Download Edition | | Pub & Dev | | 2 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- Download Edition | | Dev | | 2 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- First Press Limited Edition | | Dev | | 2 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- Regular Edition | | Dev | | 3 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- Download Edition | | Dev | | 2 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- First Press Limited Edition | | Dev | | 2 |
| 2018-09-27 | ♥17+ | | Tayutama 2 -you're the only one- Regular Edition | | Dev | | 3 |
| Tayutama 2 -After Stories- |
| 2017-03-11 | ♥18+ | | Tayutama 2 -After Stories- Web Trial Edition | | Pub & Dev | | |
| 2017-04-28 | ♥18+ | | Tayutama 2 -After Stories- Download Edition | | Pub & Dev | | 3 |
| 2017-04-28 | ♥18+ | | Tayutama 2 -After Stories- Premium Pack | | Pub & Dev | | 5 |
| 2017-04-28 | ♥18+ | | Tayutama 2 -After Stories- First Press Limited Edition | | Pub & Dev | | 4 |
| 2020-10-30 | ♥18+ | | Tayutama 2 -After Stories- Popular Edition | | Pub & Dev | | 5 |
| Yorite Konoha wa Kurenai ni |
| 2017-11-24 | ♥18+ | | Yorite Konoha wa Kurenai ni - Web Trial Edition | | Pub & Dev | | |
| 2018-01-26 | ♥18+ | | Yorite Konoha wa Kurenai ni - Download Edition | | Pub & Dev | | 3 |
| 2018-01-26 | ♥18+ | | Yorite Konoha wa Kurenai ni - First Press Limited Edition | | Pub & Dev | | 3 |
| 2018-01-26 | ♥18+ | | Yorite Konoha wa Kurenai ni - Premium Pack | | Pub & Dev | | 3 |
| 2018-03-09 | ♥18+ | | Yorite Konoha wa Kurenai ni - Regular Edition | | Pub & Dev | | 3 |
| 2020-12-25 | ♥18+ | | Yorite Konoha wa Kurenai ni - Popular Edition | | Pub & Dev | | 5 |
| Wakaba-iro no Quartet |
| 2019-06-07 | ♥18+ | | Wakaba-iro no Quartet - Trial Edition | | Pub & Dev | | |
| 2019-08-30 | ♥18+ | | Wakaba-iro no Quartet - Download Edition | | Pub & Dev | | 3 |
| 2019-08-30 | ♥18+ | | Wakaba-iro no Quartet - First Press Limited Edition | | Pub & Dev | | 4 |
| 2019-08-30 | ♥18+ | | Wakaba-iro no Quartet - Premium Pack | | Pub & Dev | | 4 |
| 2021-11-26 | ♥18+ | | Wakaba-iro no Quartet - Popular Edition | | Pub & Dev | | 6 |
| Animal☆Panic |
| 2019-10-25 | ♥18+ | | Animal☆Panic - Trial Edition | | Dev | | |
| 2019-12-20 | ♥18+ | | Animal☆Panic - Package Edition | | Dev | | 5 |
| 2022-07-29 | ♥18+ | | Animal☆Panic - Popular Edition | | Dev | | 3 |
| Nekotsuku, Sakura. |
| 2020-04-24 | ♥18+ | | Nekotsuku, Sakura. - Trial Edition | | Pub & Dev | | |
| 2020-06-26 | ♥18+ | | Nekotsuku, Sakura. - Deluxe Edition | | Pub & Dev | | 5 |
| 2020-06-26 | ♥18+ | | Nekotsuku, Sakura. - Download Edition | | Pub & Dev | | 3 |
| 2020-06-26 | ♥18+ | | Nekotsuku, Sakura. - First Press Edition | | Pub & Dev | | 5 |
| 2022-02-25 | ♥18+ | | Nekotsuku, Sakura. - Popular Edition | | Pub & Dev | | 6 |
| Madohi Shiroki no Kamikakushi |
| 2021-04-02 | ♥18+ | | Madohi Shiroki no Kamikakushi - Trial Edition | | Pub & Dev | | |
| 2021-05-28 | ♥18+ | | Madohi Shiroki no Kamikakushi - Deluxe Edition | | Pub & Dev | | 6 |
| 2021-05-28 | ♥18+ | | Madohi Shiroki no Kamikakushi - Download Edition | | Pub & Dev | | 3 |
| 2021-05-28 | ♥18+ | | Madohi Shiroki no Kamikakushi - First Press Edition | | Pub & Dev | | 6 |
| 2024-04-26 | ♥18+ | | Madohi Shiroki no Kamikakushi - Popular Edition | | Dev | | 4 |
| Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ |
| 2022-04-01 | ♥18+ | | Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ Trial Edition | | Pub & Dev | | |
| 2022-06-24 | ♥18+ | | Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ Deluxe Edition | | Pub & Dev | | 6 |
| 2022-06-24 | ♥18+ | | Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ Download Edition | | Pub & Dev | | 3 |
| 2022-06-24 | ♥18+ | | Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ First Press Edition | | Pub & Dev | | 6 |
| 2024-07-26 | ♥18+ | | Yumahorome ~Toki o Tometa Yakata de Asu o Sagasu Maigo-tachi~ Popular Edition | | Dev | | 3 |
| Arcana Alchemia |
| 2022-10-28 | ♥18+ | | Arcana Alchemia - Trial Edition | | Pub & Dev | | |
| 2022-12-23 | ♥18+ | | Arcana Alchemia - Deluxe Edition | | Pub & Dev | | 5 |
| 2022-12-23 | ♥18+ | | Arcana Alchemia - Download Edition | | Pub & Dev | | 3 |
| 2022-12-23 | ♥18+ | | Arcana Alchemia - First Press Edition | | Pub & Dev | | 5 |
| 2024-06-27 | ♥ | | Arcana Alchemia - Download Edition | | Dev | | 2 |
| 2024-06-27 | ♥ | | Arcana Alchemia - Limited Edition | | Dev | | 4 |
| 2024-06-27 | ♥ | | Arcana Alchemia - Regular Edition | | Dev | | 4 |
| 2024-06-27 | ♥17+ | | Arcana Alchemia - Download Edition | | Dev | | 3 |
| 2024-06-27 | ♥17+ | | Arcana Alchemia - Limited Edition | | Dev | | 4 |
| 2024-06-27 | ♥17+ | | Arcana Alchemia - Regular Edition | | Dev | | 4 |
| Rurizakura |
| 2023-03-24 | ♥All | | Rurizakura - Trial Edition | | Pub & Dev | | |
| 2023-04-28 | ♥All | | Rurizakura - Dakimakura Cover Included Edition | | Pub & Dev | | 2 |
| 2023-04-28 | ♥All | | Rurizakura - Regular Edition | | Pub & Dev | | 3 |
| 2024-07-04 | ♥ | | Rurizakura | | Dev | | 3 |
| Haruka Ao no Hanayome ni |
| 2023-06-16 | ♥18+ | | Haruka Ao no Hanayome ni - Trial Edition | | Pub & Dev | | |
| 2023-07-28 | ♥18+ | | Haruka Ao no Hanayome ni - Deluxe Edition | | Pub & Dev | | 6 |
| 2023-07-28 | ♥18+ | | Haruka Ao no Hanayome ni - Download Edition | | Pub & Dev | | 2 |
| 2023-07-28 | ♥18+ | | Haruka Ao no Hanayome ni - First Press Edition | | Pub & Dev | | 6 |
| 2024-08-09 | ♥ | | Xiangei Weilan Zhihai De Xinniang (drm) | | Dev | | 3 |
| Little Princess GO! |
| 2023-11-24 | ♥18+ | | Little Princess GO! - Download Edition (drm) | | Dev | | 3 |
| 2023-11-24 | ♥18+ | | Little Princess GO! - Package Edition | | Dev | | 6 |
| Kira☆Kano |
| 2024-07-19 | ♥18+ | | Kira☆Kano - Trial Edition | | Pub & Dev | | |
| 2024-08-30 | ♥18+ | | Kira☆Kano | | Pub & Dev | | 4 |
| 2025-02-14 | ♥18+ | | Shanliang☆nüyou 18+ Patch (patch) | | Dev | | |