| Taisen Ren'ai Simulation - Trifers Mahou Gakuen | 2000 | ps1 |
| Taisho x Alice: Heads & Tails | 2020 | switch, vita |
| Taishou Kitan - Kotonoha Sakura | 2014 | psp |
| Taishou Mebiusline Portable | 2014 | psp |
| Taishou Mononoke Ibunroku | 2003 | ps2 |
| Taishou Yakyuu Musume. - Otometachi no Seishun Nikki | | psp |
| Taishou x Alice - All in One | | vita |
| Taiyou no Shinden | 1988 | nes |
| Takarajima Z - Barbaros no Hihou | 2016 | wii |
| Takeru | 1994 | 3do |
| Taklamakan - Tonkou Denki | 1996 | ps1 |
| Taklamakan - Tonkou Denki | 1996 | saturn |
| Tales from the Borderlands | 2014 | ps3, ps4, xbox360, xboxone |
| Tales of Aravorn: Seasons of the Wolf | 2022 | switch |
| Tales of Monkey Island - Chapter 1 Launch of the Screaming Narwhal | 2009 | ps3, wii |
| Tales of Monkey Island - Chapter 2 - The Siege of Spinner Cay | 2009 | wii |
| Tales of Monkey Island - Chapter 3 - Lair of the Leviathan | 2009 | wii |
| Tales of Monkey Island - Chapter 4 - The Trial and Execution of Guybrush Threepwood | 2009 | wii |
| Tales of Monkey Island - Chapter 5 - Rise of the Pirate God | 2010 | wii |
| Tales of the Neon Sea | | ps4 |
| Tamakyuu | 2004 | dreamcast |
| Tamamayu Monogatari - Dennou Bijutsukan | 1998 | ps1 |
| Tamayura - Mitama Okuri no Uta | 2006 | ps2 |
| Tamayura - Mitama Okuri no Uta | 2011 | psp |
| Tanbi Musou - Meine Liebe | 2001 | gba |
| Tangle Tower | 2019 | switch |
| Tantei Bokumetsu | 2021 | ps4 |
| Tantei Gakuen Q - Kioukan no Satsui | 2003 | ps2 |
| Tantei Gakuen Q - Kyuukyoku Trick ni Idome! | 2004 | gba |
| Tantei Gakuen Q - Meitantei wa Kimi da! | 2003 | gba |
| Tantei Jinguuji Saburo - Fukushuu no Rondo | 2012 | 3ds |
| Tantei Jinguuji Saburou - Early Collection | 1999 | ps1 |
| Tantei Jinguuji Saburou - Ghost of the Dusk | 2017 | 3ds |
| Tantei Jinguuji Saburou - Hai to Diamond | 2009 | psp |
| Tantei Jinguuji Saburou - Innocent Black | 2002 | ps2 |
| Tantei Jinguuji Saburou - Kiken na Futari - Kouhen | 1989 | fds |
| Tantei Jinguuji Saburou - Kiken na Futari - Zenpen | 1988 | fds |
| Tantei Jinguuji Saburou - Kind of Blue | 2004 | ps2 |
| Tantei Jinguuji Saburou - Mikan no Report | 2000 | ps1 |
| Tantei Jinguuji Saburou - Mikan no Report | 1996 | saturn |
| Tantei Jinguuji Saburou - Shinjuku Chuuou Kouen Satsujin Jiken | 1987 | fds |
| Tantei Jinguuji Saburou - Shiroi Kage no Shoujo | 2005 | gba |
| Tantei Jinguuji Saburou - Toki no Sugiyuku Mama ni | 1990 | nes |
| Tantei Jinguuji Saburou - Tomoshibi ga Kienu Ma ni | 1999 | ps1 |
| Tantei Jinguuji Saburou - Yokohamakou Renzoku Satsujin Jiken | 1988 | nes |
| Tantei Jinguuji Saburou - Yume no Owari ni | 1998 | ps1 |
| Tantei Jinguuji Saburou - Yume no Owari ni | 1998 | saturn |
| Tantei Jinguuji Saburou DS - Akai Chou | 2010 | nds |
| Tantei Jinguuji Saburou DS - Fuserareta Shinjitsu | 2009 | nds |
| Tantei Kibukawa Ryousuke Jiken Tan - Kamen Genei Satsujin Jiken | 2005 | nds |
| Tantei Opera - Milky Holmes | 2010 | psp |
| Tantei Opera - Milky Holmes 2 | 2012 | psp |
| Tantei Opera Milky Holmes 1.5 | 2011 | psp |
| Tantei Shinshi Dash! | 2000 | dreamcast |
| Tanteibu - The Detective Club - Angou to Misshitsu to Kaijin to | 2011 | psp |
| Tanteibu - The Detective Club - Haibu to Kaiga to Bakudan to | 2011 | psp |
| Tanteibu - The Detective Club - Shissou to Hangeki to Daidanen | 2011 | psp |
| Tanteibu - The Detective Club - Tantei to Yuurei to Kaitou to | 2011 | psp |
| The Tartarus Key | 2023 | switch |
| Tasogaredoki - Kaidan Romance | 2013 | psp |
| Tatakae!! Rahmen Man - Sakuretsu Choujin 102 Gei | 1988 | nes |
| Tavern Talk | 2024 | switch |
| Tayutama - Kiss on My Deity | 2011 | xbox360 |
| Tayutama 2 - You're the only one | 2018 | vita |
| Te to Te Try On! Tropical | 2012 | psp |
| Team Batista no Eikou - Shinjitsu o Tsumugu 4-tsu no Karte | 2008 | nds |
| Tears to Tiara - Kakan no Daichi | 2008 | ps3 |
| Tears to Tiara II - Heir of the Overlord | 2013 | ps3 |
| TechnoClash | 1993 | genesis |
| Teenage Zombies - Invasion of the Alien Brain Thingys | 2008 | nds |
| Teikoku Kaleido - Kakumei no Rondo | 2017 | vita |
| Teikoku Sensenki | 2004 | ps2 |
| Telling Lies | 2020 | ps4, switch, xboxone |
| Temirana: The Lucky Princess and the Tragic Knights | 2023 | switch |
| Tenchi Muyou! Mimiri Onsen - Yukemuri no Tabi | 1996 | saturn |
| Tenchi Muyou! Ryououki | 1995 | pcengine |
| Tenchi Muyou! Ryououki FX | 1996 | pcfx |
| Tenchi Muyou! Toukou Muyou | 1996 | ps1 |
| Tenchi Muyou! Toukou Muyou - Aniraji Collection | 1997 | saturn |
| Tenchu - Time of the Assassins | 2006 | psp |
| Tenga Seiha | 1997 | saturn |
| Tengai ni Mau, Iki na Hana | 2018 | vita |
| Tengami | 2014 | wiiu |
| Tengoku Struggle: Strayside | 2022 | switch |
| Tenkaichi - Sengoku Lovers DS | 2010 | nds |
| Tenkuu Danzai - Skelter Heaven | 2004 | ps2 |
| Tennis no Ouji-sama - Doubles no Ouji-sama - Girls, Be Gracious! | 2009 | nds |
| Tennis no Ouji-sama - Motto Gakuensai no Ouji-sama - More Sweet Edition | 2010 | nds |
| Tennis no Oujisama - Doki Doki Survival - Sanroku no Mystic | 2006 | ps2 |
| Tennis no Oujisama - Doki Doki Survival - Umibe no Secret | 2007 | ps2 |
| Tennis no Oujisama - Gakuensai no Oujisama | 2005 | ps2 |
| Tennis no Oujisama - Rush & Dream! | 2004 | ps2 |
| Tennis no Oujisama - Sweat & Tears 2 | 2003 | ps2 |
| Tenohira o, Taiyou ni | 2004 | dreamcast |
| Tenohira o, Taiyou ni - Eikyuu no Kizuna | 2004 | ps2 |
| Tensei Hakkenshi - Fuumaroku | 2006 | ps2 |
| Tenshi Tsuki no Shoujo | | vita |
| Tenshi na Konamaiki | 2002 | ps1 |
| Tenshin Ranman - Happy Go Lucky!! | 2010 | psp |
| Tenshitachi no Houkago | 1989 | fds |