| XenoTown (2022) | 401 | 20 |
| Xenowerk (2015) | 1,887,821 | 2,108 |
| XenoWorld ~The Rondeau of Astra (2023) | 25 | 1 |
| Xenrai (2021) | 3,155 | 3 |
| Xentripetal Force (2019) | 0 | 0 |
| Xenus 2: White Gold (2008) | 900,523 | 273 |
| Xeodrifter (2014) | 1,148,673 | 1,064 |
| XERA: Survival (2019) | 3,047,826 | 1,713 |
| XEvil (1994) | 2,629 | 6 |
| Xevious (1982) | 4,925,237 | 1,707 |
| Xevious 3D/G (1996) | 759,910 | 180 |
| Xevious 3D/G+ (1997) | 66,381 | 95 |
| Xevious Arrangement (1995) | 266,076 | 41 |
| Xevious Resurrection (2009) | 80,631 | 8 |
| Xevious: Fardraut Densetsu (1990) | 2,155 | 14 |
| Xevious: Fardraut Saga (1988) | 182,542 | 77 |
| Xexex (1991) | 729,956 | 356 |
| Xexyz (1988) | 1,091,800 | 484 |
| XEYYEX (2019) | 47 | 4 |
| XF5700 Mantis Experimental Fighter (1992) | 12,456 | 9 |
| XGamer - AI revolution (2022) | 3,072 | 7 |
| XGIII: Extreme G Racing (2001) | 1,279,859 | 302 |
| XGRA: Extreme G Racing Association (2003) | 221,436 | 181 |
| Xheres (2023) | 851 | 14 |
| Xiah (2003) | 20,891 | 6 |
| Xiao Ao Jiang Hu (1993) | 55,305 | 16 |
| Xiao Ao Jiang Hu 2: Wu Yue Jian Pai (2003) | 8,558 | 2 |
| Xiao Yi's strange world adventure (2022) | 0 | 0 |
| Xiaolin Showdown (2006) | 3,720,895 | 372 |
| XII Stag (2002) | 60,291 | 96 |
| XIII (2003) | 4,939,845 | 6,116 |
| XIII (2020) | 11,472,977 | 3,482 |
| XIIZEAL (2015) | 17,593 | 24 |
| Xing The Land Beyond (2017) | 497 | 1 |
| XING: The Land Beyond (2017) | 948,942 | 569 |
| Xio: Survival (2022) | 354,863 | 26 |
| Xmas Lemmings (1991) | 329,699 | 198 |
| XO Evolved (2022) | 34 | 2 |
| XO-Planets (2016) | 1,378 | 20 |
| xoEl Empire (2017) | 756 | 8 |
| Xonix (1984) | 133,681 | 89 |
| Xonotic (2011) | 1,607,258 | 11,912 |
| XOR (1987) | 44,751 | 51 |
| Xotic (2011) | 413,746 | 85 |
| XOXO Droplets (2017) | 257,731 | 248 |
| XP8 (1996) | 870 | 4 |
| Xpand Rally (2004) | 244,831 | 620 |
