| KAKU: Ancient Seal (2023) | 707,066 | 1,368 |
| KAKUDO (2022) | 1,119 | 12 |
| Kakurasu World (2020) | 474 | 3 |
| Kakurenbo Battle Monster Tactics (2000) | 80,699 | 86 |
| Kakuro Magic (2020) | 148 | 4 |
| Kakuto Chojin: Back Alley Brutal (2002) | 289,585 | 253 |
| Kal Online (2004) | 1,425,066 | 969 |
| Kalaban (2016) | 7,580,748 | 501 |
| Kaleido Chaos (2018) | 0 | 0 |
| KALEIDO STELLA (2019) | 170,074 | 37 |
| Kalimba (2014) | 36,513,439 | 2,052 |
| Kalin no Tsurugi (1987) | 87,572 | 62 |
| Kalinur (2022) | 27,609 | 109 |
| KALPA: Cosmic Symphony (2024) | 141,723 | 235 |
| Kalyzmyr (2022) | 183 | 4 |
| Kamaeru: A Frog Refuge (2024) | 141,195 | 181 |
| Kamaitachi no Yoru (1994) | 17,663,963 | 1,709 |
| Kamen Rider 555 (2003) | 9,424,508 | 775 |
| Kamen Rider Battle Ganbaride Card Battle Taisen (2010) | 8,867 | 44 |
| Kamen Rider Battle: Ganbaride (2008) | 914,064 | 607 |
| Kamen Rider Blade (2004) | 10,146,991 | 847 |
| Kamen Rider Climax Scramble Zi-O (2018) | 6,169,153 | 830 |
| Kamen Rider Dragon Knight (2009) | 1,548,729 | 291 |
| Kamen Rider Kabuto (2006) | 17,631,443 | 1,927 |
| Kamen Rider SD: Shutsugeki!! Rider Machine (1993) | 106,420 | 75 |
| Kamen Rider: Battride War (2013) | 24,645,801 | 1,151 |
| Kamen Rider: Battride War Genesis (2016) | 33,081,005 | 4,632 |
| Kamen Rider: Battride War II (2014) | 25,232,254 | 1,348 |
| Kamen Rider: City Wars (2017) | 6,471,514 | 2,738 |
| Kamen Rider: Climax Fighters (2017) | 20,876,489 | 2,603 |
| Kamen Rider: Climax Heroes (2009) | 8,158,494 | 1,563 |
| Kamen Rider: Climax Heroes Fourze (2011) | 1,614,992 | 700 |
| Kamen Rider: Climax Heroes OOO (2010) | 6,201,813 | 553 |
| Kamen Rider: Climax Heroes W (2009) | 132,412 | 83 |
| Kamen Rider: Climax Scramble (2018) | 2,978,999 | 708 |
| Kamen Rider: Dragon Knight (2009) | 761,022 | 274 |
| Kamen Rider: Memory of Heroez (2020) | 10,083,502 | 2,965 |
| Kamen Rider: SummonRide (2014) | 170,570 | 67 |
| Kamen Rider: Super Climax Heroes (2012) | 26,518,096 | 6,433 |
| Kameo (2005) | 1,800,635 | 577 |
| Kameo: Elements of Power (2005) | 6,814,566 | 2,555 |
| KAMI 2 (2017) | 5,928,761 | 3,450 |
| Kami-sama's Personal Servant (2024) | 0 | 0 |
| KAMiBAKO - Mythology of Cube (2025) | 18,583 | 81 |
| KamiCrazy (2008) | 0 | 0 |
| Kamifuda (2022) | 3,831 | 59 |
| Kamigami no Asobi (2013) | 112,596 | 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) | 33,583 | 45 |
| Kamikaze Veggies (2021) | 223,932 | 222 |
| Kamiko (2017) | 2,134,873 | 879 |
| Kamile VR (2019) | 711 | 3 |
| KAMITSUBAKI CITY ENSEMBLE (2024) | 29,536 | 25 |
| KAMITSUBAKI CITY REGENERATE (2025) | 2,928 | 7 |
| Kamiwaza (2006) | 341,677 | 646 |
| Kamiwaza: Way of the Thief (2022) | 555,729 | 264 |
| Kampfgruppe (1985) | 32,022 | 21 |
| Kamyla and the Scarlet Mage (2024) | 0 | 0 |
| Kan Colle Kai (2016) | 163,012 | 207 |
| Kana Quest (2020) | 28,132 | 43 |
| Kanamono (2021) | 373 | 7 |
| Kanarasu To: Center Heroes (2014) | 0 | 0 |
| Kandagawa Jet Girls (2020) | 1,103,539 | 2,265 |
| Kandria (2023) | 55,938 | 131 |
| Kandume Monsters Parfait (1999) | 0 | 0 |
| Kane & Lynch 2: Dog Days (2010) | 14,907,507 | 6,298 |
| Kane and Lynch: Dead Men (2007) | 5,130,380 | 2,046 |
| Kang Fu (1996) | 223,282 | 21 |
| Kangaroo (1982) | 81,982,698 | 1,216 |
| Kanji Combi: Yakuzumo (2024) | 0 | 0 |
| Kanji Sonomama Rakubiki Jiten DS (2006) | 1,701 | 4 |
| Kanso (2021) | 1,462 | 8 |
| Kantai Collection (2013) | 88,935,783 | 46,018 |
