| J.P. Winkle | MSX Magazine | 1986 |  |  | 5 |
| Jack Exploring | Jordi Sala Clara | 1987 |  | | 1 |
| Jagur | Hudson Soft / Compile | 1987 | | | 6 |
| Jailbreak | Infinite | 2010 |  |  | 3 |
| Janka | UCHUDO / ASCII | 1985 | | | 1 |
| Janyu Mah-Jong | Tecno Soft | 1987 | | | 1 |
| Japanese Historical Chronology | Stratford Computer Center | 1987 | | | 1 |
| Japanese MSX-Write | ASCII | 1986 | | | 1 |
| Japanese MSX-Write II | ASCII | 1988 | | | 1 |
| Jet Bomber | Aackosoft / The Bytebusters | 1985 | | | 2 |
| Jet Set Willy | Hudson Soft | 1985 | | | 3 |
| Jigsaw Set | MIA | 1983 | | | 2 |
| Joe Blade | Players | 1989 |  | | 3 |
| Joytelop | Victor Co. of Japan (JVC) | 1984 | | | 1 |
| Jump | Mass Tael | 1985 |  | | 3 |
| Jump Coaster | Nippon Columbia / Colpax / Universal | 1984 | | | 6 |
| Jump Land | Nippon Columbia / Colpax / Universal | 1985 | | | 1 |
| Jumping Rabbit | MIA | 1984 | | | 1 |
| Jungle Hunt | Atari / Taito | 2008 | | | 4 |
| Junior high school English grammar | Stratford Computer Center | 1986 | | | 1 |
| Juno First | Konami | 1983 | | | 10 |
| Jyansei | Sony | 1986 | | | 2 |
| Jackie Chan - The Police Story | Pony Canyon | 1985 | | | 5 |
| J.E.T.P.A.C | Imanok | 2011 | | | 2 |
| JumpinG - The tutorial game | Dimension Z | 2011 | | | 3 |
| Jawbreaker 2 | Magoo | 2014 |  | | 1 |
| Just Another Snake Game | Nitrofurano | 2013 |  | | 1 |
| James Bond 007 | Parker Brothers | 1984 |  |  | 3 |
| Joust | Atarisoft | 1983 | | | 1 |
| Jukebox | Spinnaker | 1984 | | | 1 |
| Jumpman Junior | Epyx | 1984 | | | 2 |
| Jungle Hunt | Atarisoft | 1983 | | | 2 |
| Jetpack | Harvey deKleine | 2006 | | | 2 |
| Juke Box | Spinnaker | 1984 | | | 1 |
| Jump or Die | Daniel Bienvenu | 2006 | | | 2 |
| J.E.T.P.A.C | Imanok | 2011 | | | 1 |
| Jabato | Aventuras AD | 1989 | | | 1 |
| Jet Fighter | Aackosoft | 1983 | | | 1 |
| Jaws | Intelligent Design | 1989 | | | 1 |
| J.R.R. Tolkien's War in Middle Earth | Melbourne House | 1989 | | | 1 |
| Je Compte! | Nice Ideas | 1985 |  | | 1 |
| Jungle Warrior | Zigurat | 1990 | | | 2 |
| Judo - Uchi Mata | Martech Games | 1987 | | | 1 |
| Just Write Jr | Mass Tael | 1984 | |  | 1 |
| Jeepers Creepers | Daniel Bienvenu | 2007 | | | 1 |
| Jack B. Quick | Mark2008 | 2008 |  | | 1 |
| JetBoat! v30b | Unknown | 2007 | | | 1 |
| Jaasta | Uninteresting | 2020 | | | 1 |