Region | Title | System | Version | Edition | Languages | Serial | Status |
| Killzone | PS2 | 1.00 | Demo | | SCUS 97432 | |
| Kuro no Danshou: The Literary Fragment 黒の断章 -The Literary Fragment- | SS | 1.000 | Genteiban | | T-21203G | |
| Kaizou Choujin Shubibinman 3: Ikai no Princess 改造町人シュビビンマン3 ~異界のプリンセス~ | PCE | Rev 2 | NCS CD Vol. 7 | | NSCD 2010 | |
| K-1 World Grand Prix | PS2 | 1.00 | Original | | SLUS 20682 | |
| Kagami no Kuni no Legend 鏡の国のレジェンド | PCE | | Original | | JCCD9001 | |
| Kaidou: Touge no Densetsu KAIDO -峠の伝説- | PS2 | 2.00 | Original | | SLPM 66022 | |
| Kekkon: Marriage: Zen'ya 結婚 ~前夜~ | SS | 1.200 | Original | | T-10502G | |
| Kenka Banchou 喧嘩番長 | PS2 | 1.03 | Original | | SLPM 66035 | |
| Kids Station: Gomdori Pooh Hakseup Series: Gomdori Pooh Sinnaneun Yuagyosil Kids Station: 곰돌이 푸 학습 시리즈: 곰돌이 푸 신나는 유아교실 | PSX | | Original | | SLPM 88511 | |
| King Arthur | PS2 | 1.02 | Original | | SLUS 21046 | |
| The King of Route 66 | PS2 | 1.00 | Original | | SLUS 20522 | |
| Knockout Kings 2001 | PS2 | 1.00 | Original | | SLUS 20150 | |
| Konami Kids Playground: Dinosaurs: Shapes & Colors | PS2 | 1.00 | Original | | SLUS 21556 | |
| Konami Kids Playground: Frogger: Hop, Skip & Jumpin' Fun | PS2 | 1.03 | Original | | SLUS 21557 | |
| Konami Kids Playground: Toy Pals Fun with Numbers | PS2 | 1.00 | Original | | SLUS 21558 | |
| Kumitate Battle Kuttu Ketto 組み立てバトルくっつけっと | SS | 1.001 | Original | | T-1813G | |
| Kuon | PS2 | 1.02 | Original | | SLUS 21007 | |
| Kya: Dark Lineage | PS2 | 1.01 | Original | | SLUS 20440 | |
| KOF: Maximum Impact | PS2 | 1.03 | Original, Collector's Edition | | SLUS 20923 | |
| Killzone 2 | PS3 | 01.01 | Original, Essentials, Platinum: The Best of PlayStation 3, Limited Edition Collector's Box, Killzone Trilogy | | BCES-00081 … | |
| Kingdom Hearts II | PS2 | 1.00 | Original, Platinum | | SLES-54114 … | |
| Kingdom Hearts | PS2 | 1.00 | Original, Platinum, Platinum: The Best of PlayStation 2 | | SCES-50967 … | |
| Koden Koureijutsu: Hyaku Monogatari: Honto ni Atta Kowai Hanashi (Disc 1) (Joukan) 古伝降霊術 百物語 ~ほんとにあった怖い話~ | SS | 1.000 | Original, Satakore | | T-14312G, T-14324G | |
| Koden Koureijutsu: Hyaku Monogatari: Honto ni Atta Kowai Hanashi (Disc 2) (Gekan) 古伝降霊術 百物語 ~ほんとにあった怖い話~ | SS | 1.000 | Original, Satakore | | T-14312G, T-14324G | |
| KulaQuest クーラクエスト | PSX | | Taikenban | | PCPX 96121 | |
| The King of Fighters 2000 | PS2 | 1.05 | The King of Fighters 00/01 | | SLUS 20834 | |
| The King of Fighters 2001 | PS2 | 1.04 | The King of Fighters 00/01 | | SLUS 20839 | |
| The King of Fighters 2002: Challenge to Ultimate Battle | PS2 | 1.03 | The King of Fighters 02/03 | | SLUS 20995 | |
| The King of Fighters 2003 | PS2 | 1.03 | The King of Fighters 02/03 | | SLUS 20996 | |