| Xanadu Next | No Alternate Title | Falcom | 27 October 2005 | Role Playing > Action RPG | PC | N | N | Y | N |
| XDR - X-Dazedly-Ray | No Alternate Title | UNIPACC | 26 August 1990 | Action > Shooter | GEN | N | N | Y | N |
| Xenoblade Chronicles | No Alternate Title | Nintendo | 06 April 2012 | Role Playing > Action RPG | WII | N | Y | N | N |
| Xenogears | No Alternate Title | Square | 11 February 1998 | Role Playing | PSX | N | Y | Y | Y |
| Xenon 2: Megablast | No Alternate Title | Imageworks | 1991 | Action > Shooter | SMS | N | N | Y | N |
| Xenon 2: Megablast | No Alternate Title | Virgin Interactive | 1992 | Action > Shooter | GEN | N | N | Y | Y |
| Xerd no Densetsu | Legend of Xerd; Zerd no Densetsu | Vic Tokai | 18 October 1991 | Role Playing | GB | N | N | N | Y |
| Xevious | No Alternate Title | Namco | 08 November 1984 | Action > Shooter | NES | N | N | Y | Y |
| Xevious: Fardraut Saga | No Alternate Title | Namco | 1988 | Action > Shooter | MSX | N | N | Y | N |
| Xexyz | Kame no Ongaeshi: Urashima Densetsu | Hudson | 26 August 1988 | Action > Platformer | NES | N | N | N | Y |
| Xiao Ma Li | Small Mary (multicarts); Bingo | Idea-Tek, C&E | 1990 | Other | NES | N | N | N | Y |
| XZR II (MSX2) | Exile | Telenet Japan | December 1988 | Role Playing > Action RPG | MSX | N | N | Y | N |
| Yakuman | No Alternate Title | Nintendo | 21 April 1989 | Card Game | GB | N | N | Y | N |
| Yars' Revenge | No Alternate Title | Atari | May 1982 | Action > Shooter | 2600 | Y | N | N | N |
| YaruDora: Double Cast | Double Cast | Sony Interactive Entertainment | 28 July 2005 | Adventure | PSP | N | N | Y | N |
| Yggdra Union: We'll Never Fight Alone | No Alternate Title | Atlus | 23 March 2006 | Strategy > Turn Based | GBA | N | N | Y | N |
| Yie Ar Kung-Fu | No Alternate Title | Konami | 1985 | Action > Fighting | MSX | N | N | Y | N |
| Yie Ar Kung-Fu | No Alternate Title | Konami | 22 April 1985 | Action > Fighting | NES | N | N | Y | Y |
| Yie Ar Kung-Fu II: The Emperor Yie-Gah | Yie Ar Kung Fu 2: Yie-Gah Koutei no Gyakushuu | Konami | 1985 | Action > Fighting | MSX | N | N | Y | N |
| Yo! Noid | Kamen no Ninja Hanamaru;Masked Ninja Hanamaru | Capcom | 16 March 1990 | Action > Platformer | NES | N | N | Y | N |
