| & - Sora no Mukou de Saki Masuyou ni | 2013 | ps3 |
| '&' - Sora no Mukou de Sakimasu You ni | 2014 | ps3 |
| 0-ji no Kane to Cinderella - Halloween Wedding | 2013 | psp |
| 11eyes CrossOver | 2009 | xbox360 |
| 12-Sai. Honto no Kimochi | 2014 | 3ds |
| 12-Sai. Koisuru Diary | 2016 | 3ds |
| 16 Tales 1 | 1996 | ps1 |
| 16 Tales 2 | 1996 | ps1 |
| 21 - Two One | 2001 | dreamcast |
| The 25th Ward: The Silver Case | 2018 | ps4 |
| 428: Shibuya Scramble | 2018 | ps4 |
| 5 Minutes until Goodbye | 2024 | gbc |
| 5-nin no Koi Prince - Himitsu no Keiyaku Kekkon | 2015 | vita |
| 6 Inch My Darling | 1998 | saturn |
| 7'Scarlet | 2025 | switch |
| 7'scarlet | 2016 | vita |
| 9 -Nine- | 2022 | ps4, switch |
| 9 R.I.P. | 2024 | switch |
| 9 R.I.P. sequel | 2026 | switch |
| AKB1-149 - Ren'ai Sousenkyo | 2014 | ps3 |
| AKB1-149 - Ren'ai Sousenkyo | 2012 | psp |
| AKB1-149 Renai Sousenkyo | 2012 | psp |
| Aa Megami-sama | 1997 | pcfx |
| Abyss of the Sacrifice | 2020 | switch |
| Ace Attorney Investigations - Miles Edgeworth | 2009 | nds |
| Ace Attorney Investigations Collection | 2024 | ps4, switch, xboxone |
| Across the Grooves | 2020 | switch |
| Advanced V.G | 1994 | pcengine |
| Aerial Life | 2019 | vita |
| After... Wasureenu Kizuna | 2004 | dreamcast |
| Afterlove EP | 2025 | switch |
| Again - Interactive Crime Novel | 2009 | nds |
| Ai Kiss | 2020 | switch, vita |
| Ai Kiss 2 | 2021 | switch |
| Ai Kiss 3: Cute | 2022 | switch |
| Aibou DS | 2009 | nds |
| Aikagi - Hidamari to Kanojo no Heyagi | 2003 | dreamcast |
| Aikano: Yukizora no Triangle | 2020 | ps4 |
| Aikano: Yukizora no Triangle | 2020 | switch |
| Air | 2016 | vita |
| Aishiau Koto Shika Dekinai | 1998 | ps1 |
| Aitakute... - Your Smiles in My Heart - Oroshitate no Diary - Introduction Disc | 2000 | ps1 |
| Aiyoku no Eustia | 2022 | switch |
| Aiyoku no Eustia - Angel's Blessing | 2014 | vita |
| Akai Ito DS | 2008 | nds |
| Akai Ito Destiny DS | 2009 | nds |
| Akai Suna Ochiru Tsuki | 2016 | vita |
| Akatsuki no Goei Trinity | 2014 | ps3 |
| Akaya Akashiya Ayakashino | 2014 | psp |
| Albaria no Otome | 1997 | pcfx |
| Alia's Carnival! Sacrament | 2015 | vita |
| Alice in Wonderland | 2016 | wiiu |
| Alternate Jake Hunter: Daedalus The Awakening of Golden Jazz | 2018 | switch |
| Amaekata wa Kanojo Nari ni | 2017 | switch, vita |
| Amagami | 2011 | psp |
| Amairo Chocolate | 2024 | switch |
| Amakano | 2022 | switch |
| Amakano: Second Season | 2023 | switch |
| Amamane | 2019 | vita |
| Amatsumi Sora ni! Kumo no Hatate ni | 2015 | vita |
| Amatsutsumi | 2018 | vita |
| The Amazing Shinsengumi: Heroes in Love | 2018 | switch |
| Amenity's Life | 2017 | vita |
| Amnesia | 2019 | switch |
| Amnesia - Memories | 2011 | psp, vita |
| Amnesia Crowd | 2013 | psp |
| Amnesia Later x Crowd | 2019 | switch |
| Amnesia Later x Crowd V Edition | 2014 | vita |
| Amnesia World | 2014 | vita |
| Angel Present | 2001 | dreamcast |
| Angel Wish - Kimi no Egao ni Chu! | 2005 | dreamcast |
| Angelique Luminarise | 2021 | switch |
| Angelique Retour | 2015 | psp, vita |
| Angels with Scaly Wings | 2021 | switch |
| Anoko wa Ore kara Hanarenai | 2014 | ps4 |
| Anonymous;Code | 2022 | ps4, switch |
| Another Time, Another Leaf - Kagami no Naka no Tantei | 2004 | nds |
| Ao no Kanata no Four Rhythm | 2016 | vita |
| Aoi Namida | 2004 | xbox |
| Aoi Shiro HD Remaster | 2023 | switch |
| Aokana: Four Rhythm Across the Blue | 2017 | ps4, switch |
| Aonatsu Line | 2020 | switch, vita |
| Apathy - Narugami Gakuen Toshi Densetsu Tantei Kyoku | 2004 | nds |
| Apollo Justice - Ace Attorney | 2007 | nds |
| Apollo Justice: Ace Attorney Trilogy | 2024 | switch, xboxone |
| Aquarium | 2022 | switch |
| Arabians Doubt | 2014 | psp |
| Arashi no Yoru ni | 2005 | nds |
| Arcade Spirits | 2020 | ps4, switch |
| Arcana Alchemia | 2024 | switch |
| Arcana Famiglia - Festa Regalo! | 2012 | psp |
| Arcana Famiglia - La Storia della Arcana Famiglia - Ancora | 2015 | vita |
| Archetype Arcadia | 2021 | ps4, switch |
| Ascendant Hearts | 2020 | switch |
| Ayakashi Gohan - Oomori! | 2015 | vita |
| Ayakashibito - Gen'you Ibunroku Portable | 2009 | psp |
| Azayaka na Irodori no Naka de, Kimi Rashiku | 2018 | vita |
| Bad Apple Wars | 2015 | vita |
| Bakumatsu Rock - Ultra Soul | 2014 | vita |
| Bakuretsu Hunter | 1996 | saturn |