| Kaku-San-Sei Million Arthur (2012) | 7,194,909 | 2,532 |
| KAKU: Ancient Seal (2023) | 745,177 | 1,451 |
| KAKUDO (2022) | 1,119 | 12 |
| Kakurasu World (2020) | 474 | 3 |
| Kakurenbo Battle Monster Tactics (2000) | 80,843 | 87 |
| Kakuro Magic (2020) | 148 | 4 |
| Kakuto Chojin: Back Alley Brutal (2002) | 292,049 | 261 |
| Kal Online (2004) | 1,440,379 | 1,077 |
| Kalaban (2016) | 7,605,176 | 520 |
| Kaleido Chaos (2018) | 0 | 0 |
| KALEIDO STELLA (2019) | 170,074 | 37 |
| Kalimba (2014) | 36,908,965 | 2,088 |
| Kalin no Tsurugi (1987) | 87,679 | 63 |
| Kalinur (2022) | 27,674 | 110 |
| KALPA: Cosmic Symphony (2024) | 169,032 | 393 |
| Kalyzmyr (2022) | 186 | 4 |
| Kama Bullet Heritage (2017) | 0 | 0 |
| Kamaeru: A Frog Refuge (2024) | 164,788 | 246 |
| Kamaitachi no Yoru (1994) | 17,678,406 | 1,715 |
| Kamen Rider 555 (2003) | 9,437,523 | 810 |
| Kamen Rider Battle Ganbaride Card Battle Taisen (2010) | 8,867 | 44 |
| Kamen Rider Battle: Ganbaride (2008) | 914,158 | 607 |
| Kamen Rider Blade (2004) | 10,237,091 | 905 |
| Kamen Rider Climax Scramble Zi-O (2018) | 6,185,893 | 864 |
| Kamen Rider Dragon Knight (2009) | 1,550,298 | 293 |
| Kamen Rider Kabuto (2006) | 17,651,146 | 1,969 |
| Kamen Rider SD: Shutsugeki!! Rider Machine (1993) | 107,502 | 78 |
| Kamen Rider: Battride War (2013) | 24,697,471 | 1,196 |
| Kamen Rider: Battride War Genesis (2016) | 33,262,886 | 4,767 |
| Kamen Rider: Battride War II (2014) | 25,285,615 | 1,539 |
| Kamen Rider: City Wars (2017) | 6,471,633 | 2,738 |
| Kamen Rider: Climax Fighters (2017) | 20,883,532 | 2,635 |
| Kamen Rider: Climax Heroes (2009) | 8,191,626 | 1,607 |
| Kamen Rider: Climax Heroes Fourze (2011) | 1,625,178 | 707 |
| Kamen Rider: Climax Heroes OOO (2010) | 6,206,801 | 563 |
| Kamen Rider: Climax Heroes W (2009) | 133,117 | 83 |
| Kamen Rider: Climax Scramble (2018) | 2,996,357 | 729 |
| Kamen Rider: Dragon Knight (2009) | 762,409 | 278 |
| Kamen Rider: Memory of Heroez (2020) | 10,111,805 | 3,056 |
| Kamen Rider: SummonRide (2014) | 170,570 | 67 |
| Kamen Rider: Super Climax Heroes (2012) | 26,772,376 | 6,810 |
| Kameo (2005) | 1,830,361 | 598 |
| Kameo: Elements of Power (2005) | 6,859,421 | 2,693 |
| KAMI 2 (2017) | 5,931,154 | 3,452 |
| Kami-sama's Personal Servant (2024) | 0 | 0 |
| KAMiBAKO - Mythology of Cube (2025) | 18,586 | 81 |
| KamiCrazy (2008) | 0 | 0 |
| Kamifuda (2022) | 3,833 | 61 |
| Kamigami no Asobi (2013) | 120,709 | 150 |
| Kamigami: Clash of the Gods (2022) | 9,456 | 38 |
| Kamikaze Cube (2017) | 0 | 0 |
| Kamikaze Cube 2 (2018) | 15,004 | 3 |
| Kamikaze Empire (2024) | 164 | 2 |
| Kamikaze Lassplanes (2024) | 39,595 | 52 |
| Kamikaze Veggies (2021) | 224,193 | 225 |
| Kamiko (2017) | 2,135,192 | 880 |
| Kamile VR (2019) | 711 | 3 |
| KAMITSUBAKI CITY ENSEMBLE (2024) | 29,603 | 32 |
| KAMITSUBAKI CITY REGENERATE (2025) | 15,320 | 11 |
| Kamiwaza (2006) | 341,830 | 647 |
| Kamiwaza: Way of the Thief (2022) | 556,092 | 270 |
| Kampfgruppe (1985) | 32,022 | 21 |
| Kamyla and the Scarlet Mage (2024) | 0 | 0 |
| Kan Colle Kai (2016) | 170,200 | 207 |
| Kana Quest (2020) | 28,162 | 44 |
| Kanamono (2021) | 373 | 7 |
| Kanarasu To: Center Heroes (2014) | 0 | 0 |
| Kandagawa Jet Girls (2020) | 1,110,750 | 2,381 |
| Kandria (2023) | 57,987 | 131 |
| Kandume Monsters Parfait (1999) | 0 | 0 |
| Kane & Lynch 2: Dog Days (2010) | 15,059,916 | 6,554 |
| Kane and Lynch: Dead Men (2007) | 5,154,657 | 2,109 |
| Kang Fu (1996) | 226,446 | 21 |
| Kangaroo (1982) | 82,444,753 | 1,292 |
| Kanji Combi: Yakuzumo (2024) | 0 | 0 |
