Region | Title | System | Version | Edition | Languages | Serial | Status |
| Killing Time | 3DO | RE1 | Red Disc | | | |
| Killing Time | 3DO | RE2 | Black Disc | | | |
| Killing Zone | PSX | | Original | | SLUS-00369 | |
| Kinetica | PS2 | 1.00 | Demo | | SCUS 97161 | |
| The King of Fighters '95 | PSX | | Original | | SCUS-94205 | |
| The King of Fighters '99 | PSX | | Original | | SLUS-01332 | |
| King's Field | PSX | | Original | | SLUS-00158 | |
| King's Field II | PSX | | Original | | SLUS-00255 | |
| King's Quest Collection Series (Disc 1) | PC | | Original | | | |
| King's Quest Collection Series (Disc 2) | PC | | Original | | | |
| King's Quest V: Absence Makes the Heart Go Yonder King's Quest V: Absence Makes the Heart Go Yonder! | PC | 1.000.052 | 5 ft. 10 Pak Vol. I, Rerelease | | | |
| King's Quest V: Absence Makes the Heart Go Yonder King's Quest V: Absence Makes the Heart Go Yonder! | PC | 1.000.052 | 5 Ft 10 Pak In A Box Volume One, Platinum | | KQU344AE-CD | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.000 | Original | | 833021000 | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease | | 833021000 | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease | | 833024331\S302430 | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | SierraOriginals | | | |
| King's Quest VII: The Princeless Bride | PC | 2.00b | 3 Free | | S308430 | |
| King's Quest: Collector's Edition (Disc 1) | PC | | Original | | 833124331/S312432 | |
| King's Quest: Mask of Eternity | PC | 1.0.0.3 | Rerelease | | | |
| Kingdom Under Fire (Disc 1) | PC | 1.06 | Original | | | |
| Kingdom Under Fire (Disc 2) | PC | 1.06 | Original | | | |
| Kingpin: Life of Crime | PC | | Original | | CD-C95-848-0 | |
| Kingsley's Adventure | PSX | | Original | | SLUS-00801 | |
| KISS Pinball | PSX | | Original | | SLUS-01366 | |
| 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 | | | |
| KKND2: Krossfire (Disc 1) | PC | 1.0 | Original | | 04-16513CD1 | |
| KKND2: Krossfire (Disc 2) | PC | 1.0 | Original | | 04-16513CD2 | |
| Klonoa: Door to Phantomile | PSX | | Original | | SLUS-00585 | |
| Knockout Kings | PSX | | Original | | SLUS-00737 … | |
| Knockout Kings 2000 | PSX | | Original | | SLUS-00993 | |
| Knockout Kings 2001 | PSX | | Original | | SLUS-01269 | |
| Koala Lumpur: Journey to the Edge | PC | 1.0 | Original | | | |
| Kohan: Immortal Sovereigns | PC | 1.0.2 | Original | | 04-22387CD | |
| Kohan: Immortal Sovereigns | PC | 1.1.0 | Linux | | | |
| Konami Arcade Classics | PSX | | Original | | SLUS-00945 | |
| Konami Collector's Series: Castlevania & Contra | PC | 1.0 | Original | | Part Number 23422 | |
| Konung: Legend of the North | PC | 1.0 | Original, Fight Knight | | 04-22006CD | |
| Koudelka (Disc 1) | PSX | | Original | | SLUS-01051 | |
| Koudelka (Disc 2) | PSX | | Original | | SLUS-01100 | |
| Koudelka (Disc 3) | PSX | | Original | | SLUS-01101 | |
| Koudelka (Disc 4) | PSX | | Original | | SLUS-01102 | |
| Krazy Ivan | PSX | | Original | | SCUS-94303 | |
| Kurt Warner's Arena Football Unleashed | PSX | | Original | | SLUS-01125 | |
| Kya: Dark Lineage | PS2 | 1.00 | Trade Demo | | SLUS - 280 … | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease, Bundle Version OEM | | 833021000 | |
| King's Quest: Mask of Eternity | PC | 1.0 | Original | | | |
| King's Quest VI: Heir Today, Gone Tomorrow | PC | 1.000.00G | Rerelease, Sierra Originals | | 833024331\S302430, S4820220012ZZ | |
| King's Quest VII: The Princeless Bride | PC | 1.51 | Original | | S422021012ZZZ | |
| Kingdom: The Far Reaches | 3DO | | Original | | | |
| KKND Xtreme Krush, Kill 'N' Destroy: Xtreme | PC | | Original | | 785107, BEE08801304D | |
| KKND: Krush, Kill 'N' Destroy | PC | | Original | | 7792, BEX05101100D | |
| The Koshan Conspiracy BAT II | PC | | SoftKey | | KCP344AB-CD, KCP344AE | |
| Kick Off 98 | PC | | Original | | | |
| The King of Fighters '94 ザ・キング・オブ・ファイターズ’94 | NGCD | | Original | | NGCD-055, NGCD-055E | |
| The King of Fighters '94 ザ・キング・オブ・ファイターズ’94 | NGCD | Rev 1 | Original | | NGCD-055, NGCD-055E | |
| The King of Fighters '95 ザ・キング・オブ・ファイターズ’95 | NGCD | | Original | | NGCD-084, NGCD-084E | |
| The King of Fighters '96 ザ・キング・オブ・ファイターズ’96 | NGCD | | Original | | NGCD-214, NGCD-214E | |
| The King of Fighters '99 ~ The King of Fighters '99: Millennium Battle ザ・キング・オブ・ファイターズ’99 | NGCD | | Original | | NGCD-2510, NGCD-2511 | |