| Kakuto Chojin: Back Alley Brutal (2002) | 311,349 | 253 |
| Kal Online (2004) | 1,401,159 | 891 |
| Kalaban (2016) | 6,066,443 | 308 |
| KALEIDO STELLA (2019) | 170,074 | 37 |
| Kalimba (2014) | 44,791,746 | 3,173 |
| Kalin no Tsurugi (1987) | 90,065 | 59 |
| Kalinur (2022) | 27,523 | 108 |
| Kalyzmyr (2022) | 1,035 | 7 |
| Kamaitachi no Yoru (1994) | 18,743,934 | 1,991 |
| Kamen Rider 555 (2003) | 15,114,482 | 795 |
| Kamen Rider Battle Ganbaride Card Battle Taisen (2010) | 32,968 | 64 |
| Kamen Rider Battle: Ganbaride (2008) | 1,159,606 | 714 |
| Kamen Rider Blade (2004) | 10,945,089 | 745 |
| Kamen Rider Climax Scramble Zi-O (2018) | 333,888 | 367 |
| Kamen Rider Dragon Knight (2009) | 4,640,142 | 442 |
| Kamen Rider Kabuto (2006) | 25,327,248 | 1,621 |
| Kamen Rider SD: Shutsugeki!! Rider Machine (1993) | 104,301 | 73 |
| Kamen Rider: Battride War (2013) | 22,551,794 | 1,044 |
| Kamen Rider: Battride War Genesis (2016) | 32,749,890 | 4,396 |
| Kamen Rider: Battride War II (2014) | 27,406,758 | 1,382 |
| Kamen Rider: City Wars (2017) | 6,589,630 | 2,794 |
| Kamen Rider: Climax Fighters (2017) | 21,027,785 | 2,736 |
| Kamen Rider: Climax Heroes (2009) | 8,634,754 | 1,608 |
| Kamen Rider: Climax Heroes Fourze (2011) | 2,963,099 | 686 |
| Kamen Rider: Climax Heroes OOO (2010) | 4,737,179 | 521 |
| Kamen Rider: Climax Heroes W (2009) | 103,083 | 76 |
| Kamen Rider: Climax Scramble (2018) | 8,346,792 | 1,117 |
| Kamen Rider: Dragon Knight (2009) | 2,974 | 50 |
| Kamen Rider: Memory of Heroez (2020) | 10,082,974 | 2,881 |
| Kamen Rider: SummonRide (2014) | 951 | 6 |
| Kamen Rider: Super Climax Heroes (2012) | 28,440,400 | 6,058 |
| Kameo (2005) | 3,804,715 | 937 |
| Kameo: Elements of Power (2005) | 4,272,199 | 1,977 |
| KAMI 2 (2017) | 9,558,647 | 3,607 |
| Kami-sama's Personal Servant (2024) | 0 | 0 |
| KamiCrazy (2008) | 136 | 2 |
| Kamifuda (2022) | 3,926 | 69 |
| Kamigami no Asobi (2013) | 139,440 | 152 |
| Kamigami: Clash of the Gods (2022) | 8,430 | 36 |
| Kamikaze Cube 2 (2018) | 76 | 2 |
| Kamikaze Veggies (2021) | 250,489 | 248 |
| Kamiko (2017) | 1,884,429 | 877 |
| Kamile VR (2019) | 1,784 | 4 |
| Kamiwaza (2006) | 390,570 | 731 |
| Kamiwaza: Way of the Thief (2022) | 305,605 | 220 |
| Kampfgruppe (1985) | 33,231 | 34 |
| Kamyla and the Scarlet Mage (2024) | 0 | 0 |
| Kan Colle Kai (2016) | 72,451 | 164 |
| Kana Quest (2020) | 24,923 | 43 |
| Kanamono (2021) | 414 | 6 |
| Kanarasu To: Center Heroes (2014) | 0 | 0 |
| Kandagawa Jet Girls (2020) | 938,110 | 2,207 |
| Kandria (2023) | 50,999 | 137 |
| Kandume Monsters Parfait (1999) | 0 | 0 |
| Kane & Lynch 2: Dog Days (2010) | 10,764,410 | 5,219 |
| Kang Fu (1996) | 190,703 | 20 |
| Kangaroo (1982) | 55,109,182 | 1,766 |
| Kanji Combi: Yakuzumo (2024) | 0 | 0 |
| Kanji Sonomama Rakubiki Jiten DS (2006) | 1,983 | 4 |
| Kanso (2021) | 1,469 | 11 |
| Kantai Collection (2013) | 85,790,944 | 45,952 |
| Kanye Quest 3030 (2013) | 19,173,188 | 111 |
| Kao Challengers (2005) | 435,323 | 195 |
| Kao the Kangaroo (2000) | 2,869,111 | 1,088 |
| Kao the Kangaroo (2001) | 5,698 | 64 |
| Kao the Kangaroo (2022) | 4,915,009 | 4,946 |
| Kao the Kangaroo: Mystery of the Volcano (2005) | 134,916 | 79 |
| Kao the Kangaroo: Mystery of the Volcano (2006) | 897,716 | 239 |
| Kao the Kangaroo: Round 2 (2003) | 4,912,163 | 2,397 |
| Kaosapiens (2009) | 0 | 0 |
| Kapellmeister (2022) | 3,437 | 16 |
| KAPIA (2022) | 23,972 | 196 |
| KAPITAL PUNISHMENT 22XX (2023) | 259 | 7 |
| Kapital: Sparks of Revolution (2022) | 1,799,511 | 374 |
| Kaptain Brawe: A Brawe New World (2010) | 57,417 | 95 |
