Region | Title | System | Version | Edition | Languages | Serial | Status |
| Killer Loop | PSX | | Original | | SLUS-00938 | |
| Killzone 2 | PS3 | 01.01 | Original, Essentials, Platinum: The Best of PlayStation 3, Limited Edition Collector's Box, Killzone Trilogy | | BCES-00081 … | |
| Kao the Kangaroo | PC | 1.18.6.0 | Original, White Label | | 095419 | |
| Kart Race | PC | | Pocket Price Games | | | |
| King's Quest VII: The Princeless Bride | PC | 2.00b | SierraOriginals, Budget | | MMICDR 5395, S6490220Z12ZZ | |
| King's Quest: Collector's Edition (Disc 1) | PC | 1.036 | Original | | S371BBZZ12ZZZ | |
| King's Quest: Collector's Edition (Disc 2) | PC | 1.036 | Original | | S371BBZZ12ZZZ | |
| Kingpin: Life of Crime | PC | 1.2 | Sold Out Software | | | |
| KISS Psycho Circus: The Nightmare Child | PC | 1.0 | Original | | | |
| KISS Psycho Circus: The Nightmare Child / Heavy Metal: F.A.K.K. 2: Bonus Disc! KISS Psycho Circus: The Nightmare Child / Heavy Metal: FAKK 2: Bonus Disc! | PC | | Original | | | |
| KKND: Krush, Kill 'N' Destroy | PC | | Original | | 7792, BEX05101100D | |
| KKND2: Krossfire (Disc 1) | PC | | Original | | KKND2-DISC1-ENG | |
| KKND2: Krossfire (Disc 2) | PC | | Original, Covermount | | KKND2-DISC2-ENG | |
| Knight Rider 2: The Game | PC | 1.0.0 | Original | | KRII1PC | |
| Knight Rider: The Game | PC | 1.0.0 | Original | | KNIRIDE | |
| Konami Collector's Series: Castlevania & Contra | PC | 1.0 | Original | | Part Number 23422 | |
| The Koshan Conspiracy BAT II | PC | | SoftKey | | KCP344AB-CD, KCP344AE | |
| Krazy Ivan | PC | 1.0 | Original | | | |
| The King of Fighters XII ザ・キング・オブ・ファイターズ ⅩⅠⅠ | XBOX360 | | Original, Promo | | SN-2002 | |
| Karaoke Vol. 1 Karaoke | CDI | | Original | | 814 0069 | |