| Kyuuyaku Megami Tensei | DDSTranslation | Role Playing | SNES | Fully Playable | 1.1 | 06 Sep 2014 | EN |
| Kyuuyaku Megami Tensei | Dushbadge | Role Playing | SNES | Addendum | 1.0 | 30 Nov 2017 | EN |
| Kyuuyaku Megami Tensei | raindare | Role Playing | SNES | Addendum | 0.6 | 03 May 2023 | EN |
| Kyuukyoku Harikiri Stadium | MrRichard999 | Sports | NES | Unfinished | 0.70b | 14 Jan 2016 | EN |
| Kyoryu Sentai ZyuRanger | Grimm Translations | Action > Platformer | NES | Fully Playable | 0.99 | 23 Jun 2009 | EN |
| Kyoryu Sentai ZyuRanger | pacnsacdave | Action > Platformer | NES | Addendum | 1.0 | 11 Mar 2016 | EN |
| Kyattou Ninden Teyandee | Dark Mark | Action > Platformer | NES | Fully Playable | 1.00 | 11 Feb 2012 | EN |
| Kyattou Ninden Teyandee | D | Action > Platformer | NES | Unfinished | 4.5 | 17 Dec 1997 | EN |
| Kyattou Ninden Teyandee | Vice Translations | Action > Platformer | NES | Fully Playable | 1.01 | 01 Jul 2012 | EN |
| Kyattou Ninden Teyandee | Vertigo 2099 | Action > Platformer | NES | Unfinished | 0.10 | 13 Mar 1998 | EN |
| Kuusou Kagaku Sekai Gulliver Boy | Stealth Translations | Role Playing > Action RPG | SNES | Fully Playable | 0.99 | 26 May 2001 | EN |
| Kuusou Kagaku Sekai Gulliver Boy | mteam | Role Playing > Action RPG | SNES | Addendum | 1.1 | 02 Apr 2014 | EN |
| Kururin Paradise | DigitalZero Domain | Other | GBA | Unfinished | 0.5 | 23 Mar 2007 | EN |
| Kuroshitsuji: Phantom & Ghost | Phantom & Ghost Team | Adventure | NDS | Fully Playable | 1.0 | 22 Feb 2019 | EN |
| Kunio-kun no Dodge Ball: Zenin Shuugou! | Evolutions | Sports | SNES | Unfinished | 1.0 | 02 Feb 2001 | EN |
| Kunio-kun no Dodge Ball: Zenin Shuugou! | B. Stigall | Sports | SNES | Unfinished | 1.3 | 30 May 2004 | EN |
| Kunio-kun no Dodge Ball: Zenin Shuugou! | Azelistic | Sports | SNES | Fully Playable | 1.00 | 17 Jul 2004 | EN |
| Kunio Kun no Nekketsu Soccer League | PentarouZero | Sports | NES | Fully Playable | 1.2 | 23 Oct 2003 | EN |
| Kunio Kun no Nekketsu Soccer League | El Duderino | Sports | NES | Addendum | 1.0 | 28 Jun 2020 | EN |
| Kunio Kun no Nekketsu Soccer League | Ice Translations | Sports | NES | Unfinished | 0.25 | 03 Nov 2000 | EN |
