| kill.switch | | | 1/11/2021 | $7.84 | $27.97 | $20.13 | USA |
| Killer 3D Pool | | | 7/30/2019 | $2.08 | $4.99 | $2.91 | USA |
| Kim Possible 2: Drakken's Demise | | | 11/29/2019 | $2.31 | $8.17 | $5.86 | USA |
| Kim Possible 3: Team Possible | | | 5/3/2019 | $2.76 | $7.38 | $4.62 | USA |
| Kim Possible: Revenge of Monkey Fist | | | 10/12/2019 | $5.40 | $5.00 | $-0.40 | USA |
| King of Fighters EX2: Howling Blood | | | 5/23/2022 | $67.00 | $59.59 | $-7.41 | USA |
| King of Fighters EX: Neo Blood | | | 5/15/2022 | $17.74 | $25.49 | $7.75 | USA |
| Kingdom Hearts: Chain of Memories | | | 4/25/2019 | $2.87 | $18.88 | $16.01 | USA |
| Kinniku Banzuke: Kongou-Kun no Daibouken! | | | 9/19/2024 | $2.00 | $2.00 | $0.00 | JAP |
| Kirby & the Amazing Mirror | | | 12/26/2021 | $38.92 | $31.13 | $-7.79 | USA |
| Kirby's Blowout Blast | | | Unknown | Unknown | $0.00 | $0.00 | 3DSd |
| Kirby: Canvas Curse | ✔ | ✔ | Unknown | Unknown | $59.11 | $0.00 | DS |
| Kirby: Nightmare in Dream Land | | | 3/11/2020 | $4.69 | $28.13 | $23.44 | USA |
| Kiss x Kiss: Seirei Gakuen | | | 9/19/2024 | $2.00 | $2.00 | $0.00 | JAP |
| Klonoa 2: Dream Champ Tournament | | | 6/30/2022 | $69.98 | $64.99 | $-4.99 | USA |
| Klonoa: Empire of Dreams | | | 9/15/2021 | $37.08 | $35.40 | $-1.68 | USA |
| Koala Brothers: Outback Adventures | | | 8/6/2019 | $2.58 | $7.72 | $5.14 | USA |
| Konami Collector's Series: Arcade Advanced | | | 3/8/2019 | $1.22 | $5.20 | $3.98 | USA |
| Konami Krazy Racers | | | 6/7/2019 | $7.57 | $21.40 | $13.83 | USA |
| Konchuu Ouja Mushiking: Greatest Champion e no Michi | | | 6/25/2020 | $1.68 | $1.68 | $0.00 | JAP |