| Kaboink! | LogiCow ◪ | 2002-12-22 |
| 178 |
| Kalypsian Legends Demo | ZzCrook ◪ | 2002-07-29 |
| 108 |
| Kamen's Tale | Diamond ◪ | 1999-07-05 |
| 121 |
| Karkin | Easton Blue ◪ | 2001-05-28 |
| 117 |
| Keep Smilin' | Sai'ke ◪ | 2000-09-15 | No reviews. | 154 |
| Kikan (Remake) | djtiesto ◪ | 2008-02-02 |
| 441 |
| Kill 'Em All! | Nedemai ◪ | 2005-12-07 |
| 149 |
| Kill Lancer-X | NoahSoft ◪ | 2006-08-02 |
| 111 |
| Kill the Joshachus! | Spinfusor ◪ | 2003-10-09 |
| 115 |
| King Rat 3 | yenrab | 1996-03-23 |
| 55 |
| King's Castle | Scott Hammack | 1996-05-12 |
| 125 |
| Kinok's Legacy Demo | gokachu ◪ | 2002-02-24 |
| 107 |
| Kirby's Adventure in MegaZeux Land | asterick ◪ | 1997-01-18 | No reviews. | 116 |
| Kitscher Krooble | Tox ◪ | 2005-12-09 |
| 115 |
| KKairos Birthday Game 2, A | ThDPro ◪ | 2014-06-02 | No reviews. | 106 |
| KKairos Birthday Game 3, A | ThDPro ◪ | 2016-06-02 | No reviews. | 89 |
| KKairos Birthday Game, A | ThDPro ◪ | 2013-06-02 | No reviews. | 111 |
| KKairos's Disappointment Bundle | KKairos ◪ | 2010-02-11 | No reviews. | 123 |
| KM's Univers! | KMSpill | 1996-04-24 |
| 318 |
| KM's Univers! 2 | KMSpill | 1997-02-01 | No reviews. | 141 |
| KM's Univers! III (Incomplete) | KMSpill | 1999-02-22 | No reviews. | 117 |
| KMSpill Game Collection (Norwegian) | KMSpill | 2009-01-31 | No reviews. | 128 |
| Knife Bro | CJA ◪ | 2010-03-05 |
| 320 |
| Knife: A Memoir | Bramble ◪ | 2009-03-13 |
| 115 |
| Kya's Sword | RyanThunder ◪ | 2000-06-18 |
| 141 |
| Kyro | Alexman2 | 1998-05-27 |
| 118 |
