| Kaleidoscope Club (Empire) (MPU5) | 1969 | Empire | m5kaleid | | 0.00 |
| Kamakazi III (superg hack) (clone of: galaxian) | 1979 | hack | kamakazi3 | | 0.00 |
| Kameleon (JPM) (IMPACT) | 1969 | JPM | j6kamel | | 0.00 |
| Kamikaze (sample of: invaders) | 1979 | Leijac Corporation | kamikaze | Shooter / Gallery | 3.25 |
| Kamikaze Cabbie | 1984 | Data East Corporation | kamikcab | Maze / Driving | 4.60 |
| Kanatsuen no Onna [BET] (Japan 880905) | 1988 | Panac | kanatuen | Tabletop / Mahjong *Mature* | 0.00 |
| Kangaroo | 1982 | Sun Electronics | kangaroo | Platform / Run Jump | 6.91 |
| Kangaroo (Atari) (clone of: kangaroo) | 1982 | Sun Electronics (Atari license) | kangarooa | | 0.00 |
| Kangaroo (bootleg) (clone of: kangaroo) | 1982 | bootleg | kangaroob | | 0.00 |
| Kaos | 1981 | Game Plan | kaos | Platform / Run Jump | 5.80 |
| Kapang! (Crystal) (IMPACT) | 1969 | Crystal | j6kapang | | 0.00 |
| Karaoke Quiz Intro Don Don! (J 960213 V1.000) | 1996 | Sunsoft / Success | introdon | Quiz / Japanese | 0.00 |
| Karate Blazers (Japan) (clone of: karatblz) | 1991 | Video System Co. | karatblzj | | 0.00 |
| Karate Blazers (US) (clone of: karatblz) | 1991 | Video System Co. | karatblzu | | 0.00 |
| Karate Blazers (World) | 1991 | Video System Co. | karatblz | Fighter / 2.5D | 5.50 |
| Karate Champ (US) | 1984 | Data East USA | kchamp | Fighter / Versus | 5.73 |
| Karate Champ (US, VS version set 1) (clone of: kchamp) | 1984 | Data East USA | kchampvs | Fighter / Versus | 0.00 |
| Karate Champ (US, VS version set 2) (clone of: kchamp) | 1984 | Data East USA | kchampvs2 | | 0.00 |
| Karate Dou (Japan) (clone of: kchamp) | 1984 | Data East Corporation | karatedo | Fighter / Versus | 0.00 |
| Karian Cross (Rev. 1.0) | 1996 | Deniam | karianx | Puzzle / Drop | 7.70 |