Region | Title | System | Version | Edition | Languages | Serial | Status |
| Kowloon's Gate: Kowloon Fuusuiden (Disc 4) (Seiryuu) クーロンズ・ゲート -九龍風水傳- | PSX | | Original, Shokai Genteiban | | SCPS 45017 … | |
| Kowloon's Gate: Kowloon Fuusuiden (Disc 3) (Suzaku) クーロンズ・ゲート -九龍風水傳- | PSX | | Original, Shokai Genteiban | | SCPS 45016 … | |
| Kowloon's Gate: Kowloon Fuusuiden (Disc 2) (Genbu) クーロンズ・ゲート -九龍風水傳- | PSX | | Original, Shokai Genteiban | | SCPS 45015 … | |
| Kowloon's Gate: Kowloon Fuusuiden (Disc 1) (Byakko) クーロンズ・ゲート -九龍風水傳- | PSX | | Original, Shokai Genteiban | | SCPS 45014 … | |
| The Koshan Conspiracy BAT II | PC | | SoftKey | | KCP344AB-CD, KCP344AE | |
| Konami Antiques: MSX Collection Vol. 3 コナミアンティークス MSXコレクション Vol.3 | PSX | | Original | | SCPS 45205 … | |
| KKND: Krush, Kill 'N' Destroy | PC | | Original | | 7792, BEX05101100D | |
| KKND Xtreme Krush, Kill 'N' Destroy: Xtreme | PC | | Original | | 785107, BEE08801304D | |
| Kingdom: The Far Reaches | 3DO | | Original | | | |
| King's Quest: Mask of Eternity | PC | 1.0 | Original | | | |
| King's Quest VII: The Princeless Bride | PC | 1.51 | Original | | S422021012ZZZ | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease, Sierra Originals | | 833024331\S302430, S4820220012ZZ | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease, Bundle Version OEM | | 833021000 | |
| Kidz Sports Basketball | PS2 | 1.01 | Original | | SLES-52449 … | |
| Kidou Senshi Gundam: Gihren no Yabou: Zeon no Keifu (Disc 2) (Zeon Disc) 機動戦士ガンダム ギレンの野望 ジオンの系譜 | PSX | | Original | | SCPS 45482 … | |
| Kidou Senshi Gundam: Gihren no Yabou: Zeon no Keifu (Disc 1) (Earth Federation Disc) 機動戦士ガンダム ギレンの野望 ジオンの系譜 | PSX | | Original | | SCPS 45481 … | |
| Kick Off World | PSX | | Original | | SLES-01061 | |
| Kenkaku Ibunroku: Yomigaerishi Souku no Yaiba: Samurai Spirits Shinshou 剣客異聞録 甦りし蒼紅の刃 サムライスピリッツ新章 | PSX | | Original | | SCPS 45466 … | |
| Kaze no Notam: Notam of Wind 風のノータム | PSX | | Original, Sample | | SCPS 45111 … | |
| Kart Racer | PS2 | 1.02 | Original | | SLES-55480 … | |
| Kyoto Sennen Monogatari: Cosmology of Kyoto 京都千年物語 Cosmology of KYOTO | MAC | | Original | | SCD-1 | |
| Kodak Photo CD Access Plus Software & Photo Sampler II コダック アクセスプラス | PHOTO-CD | 2.0.1 | Original | | Part No. 002-02 | |
| Kidou Senshi Gundam: Renpou vs. Zeon DX ~ Mobile Suit Gundam: The Earth Federation vs. The Principality of Zeon Deluxe 機動戦士ガンダム 連邦VS.ジオンDX | NAOMI | 1.000 | Original | | GDL-0006 | |