| KAKU: Ancient Seal (2023) | 712,724 | 1,380 |
| KAKUDO (2022) | 1,119 | 12 |
| Kakurasu World (2020) | 0 | 0 |
| Kakurenbo Battle Monster Tactics (2000) | 80,843 | 87 |
| Kakuro Magic (2020) | 0 | 0 |
| Kakuto Chojin: Back Alley Brutal (2002) | 290,910 | 256 |
| Kal Online (2004) | 1,434,659 | 1,026 |
| Kalaban (2016) | 7,588,170 | 511 |
| Kaleido Chaos (2018) | 0 | 0 |
| KALEIDO STELLA (2019) | 170,074 | 37 |
| Kalimba (2014) | 36,804,245 | 2,073 |
| Kalin no Tsurugi (1987) | 87,572 | 62 |
| Kalinur (2022) | 27,617 | 109 |
| KALPA: Cosmic Symphony (2024) | 143,569 | 273 |
| Kalyzmyr (2022) | 0 | 0 |
| Kama Bullet Heritage (2017) | 0 | 0 |
| Kamaeru: A Frog Refuge (2024) | 151,029 | 227 |
| Kamaitachi no Yoru (1994) | 17,664,257 | 1,710 |
| Kamen Rider 555 (2003) | 9,431,680 | 786 |
| Kamen Rider Battle Ganbaride Card Battle Taisen (2010) | 0 | 0 |
| Kamen Rider Battle: Ganbaride (2008) | 914,135 | 607 |
| Kamen Rider Blade (2004) | 10,195,640 | 877 |
| Kamen Rider Climax Scramble Zi-O (2018) | 6,179,628 | 851 |
| Kamen Rider Dragon Knight (2009) | 1,549,642 | 292 |
| Kamen Rider Kabuto (2006) | 17,641,338 | 1,948 |
| Kamen Rider SD: Shutsugeki!! Rider Machine (1993) | 107,040 | 77 |
| Kamen Rider: Battride War (2013) | 24,692,991 | 1,188 |
| Kamen Rider: Battride War Genesis (2016) | 33,213,047 | 4,735 |
| Kamen Rider: Battride War II (2014) | 25,239,000 | 1,525 |
| Kamen Rider: City Wars (2017) | 6,471,629 | 2,738 |
| Kamen Rider: Climax Fighters (2017) | 20,880,830 | 2,622 |
| Kamen Rider: Climax Heroes (2009) | 8,182,595 | 1,593 |
| Kamen Rider: Climax Heroes Fourze (2011) | 1,621,432 | 706 |
| Kamen Rider: Climax Heroes OOO (2010) | 6,205,390 | 561 |
| Kamen Rider: Climax Heroes W (2009) | 132,936 | 83 |
| Kamen Rider: Climax Scramble (2018) | 2,989,372 | 724 |
| Kamen Rider: Dragon Knight (2009) | 762,342 | 276 |
| Kamen Rider: Memory of Heroez (2020) | 10,101,939 | 3,035 |
| Kamen Rider: SummonRide (2014) | 170,570 | 67 |
| Kamen Rider: Super Climax Heroes (2012) | 26,661,786 | 6,656 |
| Kameo (2005) | 1,803,719 | 594 |
| Kameo: Elements of Power (2005) | 6,845,216 | 2,645 |
| KAMI 2 (2017) | 5,931,152 | 3,452 |
| Kami-sama's Personal Servant (2024) | 0 | 0 |
| KAMiBAKO - Mythology of Cube (2025) | 18,586 | 81 |
| KamiCrazy (2008) | 0 | 0 |
| Kamifuda (2022) | 3,831 | 59 |
| Kamigami no Asobi (2013) | 116,659 | 150 |
| Kamigami: Clash of the Gods (2022) | 9,456 | 38 |
| Kamikaze Cube 2 (2018) | 15,004 | 3 |
| Kamikaze Empire (2024) | 164 | 2 |
| Kamikaze Lassplanes (2024) | 33,773 | 48 |
| Kamikaze Veggies (2021) | 224,190 | 225 |
| Kamiko (2017) | 2,135,153 | 880 |
| Kamile VR (2019) | 711 | 3 |
| KAMITSUBAKI CITY ENSEMBLE (2024) | 29,599 | 32 |
| KAMITSUBAKI CITY REGENERATE (2025) | 15,051 | 10 |
| Kamiwaza (2006) | 341,709 | 646 |
| Kamiwaza: Way of the Thief (2022) | 556,080 | 267 |
| Kampfgruppe (1985) | 32,022 | 21 |
| Kamyla and the Scarlet Mage (2024) | 0 | 0 |
| Kan Colle Kai (2016) | 165,067 | 207 |
| Kana Quest (2020) | 28,159 | 43 |
| Kanamono (2021) | 373 | 7 |
| Kanarasu To: Center Heroes (2014) | 0 | 0 |
| Kandagawa Jet Girls (2020) | 1,106,796 | 2,341 |
| Kandria (2023) | 57,225 | 131 |
| Kandume Monsters Parfait (1999) | 0 | 0 |
| Kane & Lynch 2: Dog Days (2010) | 14,990,923 | 6,459 |
| Kane and Lynch: Dead Men (2007) | 5,136,626 | 2,095 |
| Kang Fu (1996) | 226,446 | 21 |
| Kangaroo (1982) | 82,395,931 | 1,257 |
| Kanji Combi: Yakuzumo (2024) | 0 | 0 |
| Kanji Sonomama Rakubiki Jiten DS (2006) | 1,710 | 4 |
| Kanso (2021) | 1,462 | 8 |
