| Kiss the Demiurge (2022) | 2,015 | 13 |
| Kiss/OFF (2023) | 1,555 | 14 |
| Kiss: Psycho Circus: The Nightmare Child (2000) | 697,628 | 815 |
| Kit's Quest (2023) | 4,583 | 81 |
| Kita e: Diamond Dust (2003) | 26,234 | 110 |
| Kita e: White Illumination (1999) | 107,320 | 79 |
| Kitaria Fables (2021) | 2,319,082 | 4,344 |
| Kitchen Crisis (2024) | 335,237 | 112 |
| Kitchen Delights (2026) | 0 | 0 |
| Kitchen Panic (1998) | 38,170 | 89 |
| Kitchen Sync: Aloha! (2025) | 3,788 | 42 |
| Kitchen Wars (2025) | 30,641 | 63 |
| KitHack Model Club (2024) | 356,111 | 52 |
| Kithe #14 (1997) | 1 | 1 |
| Kitsu Saga (2010) | 297,701 | 41 |
| Kitsu's Destiny (2022) | 28 | 1 |
| Kitsune Battlemage (2023) | 460 | 2 |
| Kitsune Kitchen (2018) | 49,023 | 3 |
| Kitsune Tails (2024) | 144,135 | 216 |
| Kitsune: The Journey of Adashino (2025) | 305,831 | 53 |
| Kitt's Quest (2024) | 0 | 0 |
| Kitten Adventures in City Park (2017) | 19,008 | 27 |
| Kitten Burst (2022) | 8,213 | 37 |
| Kitten Cannon (2005) | 779,360 | 78 |
| Kitten Food Alley (2025) | 0 | 0 |
| Kitten Kingdom (2023) | 0 | 0 |
| Kitten Rampage (2016) | 12,327,353 | 97 |
| Kitten Squad (2015) | 874,595 | 881 |
| Kitten'd (2018) | 4,475,887 | 85 |
| Kitten's Wardrobe (2024) | 532 | 3 |
| Kitter (2024) | 19 | 1 |
| Kitty Can Cook (2026) | 0 | 0 |
| Kitty Cat: Jigsaw Puzzles (2016) | 1,939 | 7 |
| Kitty Kitty Bounce Bounce (2024) | 90 | 1 |
| Kitty Love: Way to look for love (2018) | 113,370 | 66 |
| Kitty Loves Birds (2025) | 0 | 0 |
| Kitty May Cry (2022) | 23,835 | 33 |
| Kitty Nigiri (2017) | 0 | 0 |
| Kitty Powers' Love Life (2018) | 2,857,272 | 422 |
| Kitty Powers' Matchmaker (2014) | 99,374,529 | 1,841 |
| Kitty Rainbow (2020) | 78 | 3 |
| Kitty Survivors: Rogues of Catmere (2023) | 8,847 | 19 |
| Kitty Tactics (2021) | 4,105 | 14 |
| Kitty's Last Adventure (2025) | 0 | 0 |
| Kittyverse of Madness (2023) | 220,913 | 38 |
| Kity Builder (2023) | 8,512 | 35 |
| Kivi's Underworld (2008) | 245 | 6 |
| Kivi, Toilet and Shotgun (2016) | 0 | 0 |
| Kiwie vs Desert (2024) | 2 | 1 |
| Kizuna AI - Touch the Beat! (2023) | 16,915,869 | 541 |
| Kizuna Encounter: Super Tag Battle (1996) | 1,707,016 | 1,096 |
| KKCKC (2024) | 25 | 2 |
| KKnD (1997) | 1,061,840 | 1,077 |
| KKnD Xtreme (1997) | 295,850 | 414 |
| KKND2: Krossfire (1998) | 1,584,207 | 2,022 |
| Klang 2 (2020) | 17,847 | 92 |
| KlashBall (1991) | 40,336 | 40 |
| Klaus Lee - Thunderballs (2025) | 2,106 | 30 |
| Klaus Veen's Treason (2023) | 98,391 | 24 |
| Klax (1990) | 2,836,057 | 735 |
| Klax / Marble Madness (2005) | 10,097 | 11 |
| Klaystar (2022) | 318 | 2 |
| Kleebuu Craves Fruit Salad (2023) | 184 | 3 |
| Kleopatra (2026) | 73 | 1 |
| KLETKA (2024) | 10,134,912 | 695 |
| Kloa - Child of the Forest (2026) | 16 | 1 |
| Klobgniak (2024) | 600 | 3 |
| Klondike Solitaire (2019) | 43,927 | 166 |
| Klondike Solitaire Collection (2021) | 1,030 | 4 |
| Klondike Solitaire Kings (2017) | 25 | 1 |
| Klonoa (2008) | 3,374,087 | 2,096 |
| Klonoa 2: Dream Champ Tournament (2002) | 374,038 | 727 |
| Klonoa 2: Lunatea's Veil (2001) | 4,529,128 | 6,363 |
| Klonoa Beach Volleyball (2002) | 261,253 | 337 |
| Klonoa Heroes: Densetsu no Star Medal (2002) | 586,068 | 389 |
