Region | Title | System | Version | Edition | Languages | Serial | Status |
| Kid Phonics | PC | | | | | |
| Kinect Adventures! KINECT 大冒險! | XBOX360 | Rev 1 | Bundled with Kinect | | MS-2285 | |
| Kidou Senshi Gundam: Meguriai Sora 機動戦士ガンダム めぐりあい宇宙 | PS2 | 1.03 | Digest DVD Doukonban | | SLPS 25062 | |
| Kishin Houkou Demonbane 機神咆吼デモンベイン | PS2 | 1.02 | DX Pack | | SLPM 65490 | |
| Kessen II 決戦Ⅱ | PS2 | 1.04 | Kessen & Kessen II Super Value Set | | SLPM 65031 | |
| Kid's Zoo: A Baby Animal Adventure | PC | | Not for Resale | | ZZKID12CDNFROD | |
| Kyousouba Ikusei Simulation: Derby Stallion 競走馬育成シミュレーション ダービースタリオン | PSX | | Original | | SLPS 00777 | |
| Kurenai no Umi 2: Crimson Sea 紅の海2 -Crimson Sea- | PS2 | 1.04 | Original | | SLPM 65477 | |
| Konjiki no Gashbell!! Yuujou Tag Battle 2 金色のガッシュベル!!友情タッグバトル2 | PS2 | 1.01 | Original | | SLPS 25479 | |
| Kirby's Return to Dream Land | WII | | Original | | RVL-SUKE-USA-B0 | |
| Kids Can Read! The Tale of Peter Rabbit | PC | | Original | | CDRM1051500 | |
| Kids Can Read! Aesop's Fables | PC | | Original | | CDRM1051740 | |
| Kidou Senshi Gundam: Renpou vs. Zeon DX 機動戦士ガンダム ~連邦VS.ジオンDX~ | PS2 | 1.02 | Original | | SLPM 65076 | |
| Kidou Senshi Gundam Seed: Rengou vs. Z.A.F.T. 機動戦士ガンダムSEED 連合 VS. Z.A.F.T. | PS2 | 1.01 | Original | | SLPS 25569 | |
| Kidou Senshi Gundam Seed Destiny: Generation of C.E. 機動戦士ガンダムSEED DESTINY ~GENERATION of C.E.~ | PS2 | 1.02 | Original | | SLPS 25549 | |
| Kidou Senshi Gundam 00: Gundam Meisters 機動戦士ガンダム00 ガンダムマイスターズ | PS2 | 1.01 | Original | | SLKA 25441 … | |
| Kid's College | PC | | Original | | | |
| Kid Works Deluxe | PC | 1.0.0.1 | Original | | | |
| Kid Pix Studio Deluxe | MAC | | Original | | | |
| Kid Pix Deluxe 3 | PC | 1.0 | Original | | 378180B-CD | |
| Kid Pix Deluxe 3 (Teacher Sample) | PC | | Original | | 478480-CD | |
| Kid Pix | PC | 2.5 | Original | | | |
| Kid Phonics 2 | PC | | Original | | | |
| Katamari Forever | PS3 | 01.00 | Original | | BCAS 20095 … | |
| Katamari Damacy | PS2 | 1.00 | Original | | SLUS 21008 | |
| Karaoke Revolution Party | PS2 | 1.02 | Original | | SLUS 21223 | |
| Kaitei Daisensou: In the Hunt 海底大戦争 ~IN THE HUNT~ | PSX | | Original | | SLPS 00086 | |
| Kingdom Hearts | PS2 | 1.01 | Original, Greatest Hits | | SLUS 20370 … | |
| Kidou Senshi Gundam Seed Destiny: Rengou vs. Z.A.F.T. II Plus 機動戦士ガンダムSEED DESTINY 連合vs.Z.A.F.T.II PLUS | PS2 | 1.00 | Original, Gundam 30th Anniversary Collection | | SLKA 25165 … | |
| Kidou Senshi Z Gundam: A.E.U.G. vs. Titans 機動戦士Zガンダム エゥーゴ VS. ティターンズ | PS2 | 1.01 | Original, PlayStation 2 the Best | | SLPS 25305 … | |
| Kenka Banchou 2: Full Throttle 喧嘩番長2 ~フルスロットル~ | PS2 | 1.04 | Original, PlayStation 2 the Best | | SLPM 66632 … | |
| Kamaitachi no Yoru 2: Kangoku-jima no Warabe-uta かまいたちの夜2 ~監獄島のわらべ唄~ | PS2 | 1.10 | Original, PlayStation 2 the Best | | SLPS 25135 … | |
| Kingdom Hearts: Final Mix | PS2 | 1.00 | Original, Ultimate Hits | | SCAJ 20149 … | |
| Kingdom Hearts II キングダム ハーツⅡ | PS2 | 1.02 | Original, Ultimate Hits, Trinity Masterpieces | | SLPM 55019 … | |
| Kingdom Hearts キングダム ハーツ | PS2 | 1.01 | Original, Ultimate Hits, Trinity Masterpieces | | SLPM 66122 … | |
| Kessen 決戦 | PS2 | 2.10 | PlayStation 2 the Best, Kessen & Kessen II Super Value Set, Koei Teiban Series | | SLPM 65030 … | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease | | 833021000 | |
| KinderVentures: Pocket & Tails Go Exploring | PC | | SoftKey | | PTE544AE-CD | |
| Kuri Kuri Mix くりクリミックスたいけんばん | PS2 | 1.10 | Taikenban | | SLPM 60127 | |