Region | Title | System | Version | Edition | Languages | Serial | Status |
| X Games Pro Boarder X GAMES プロ・ボーダー | PSX | | Original | | SLPS 01944 | |
| X Games Pro Boarder X GAMES プロボーダー | PSX | | Taikenban Disc | | SLPM 80393 | |
| X-Men vs. Street Fighter: EX Edition エックスメンVS.ストリートファイター EXエディション | PSX | | Original | | SLPS 01284 | |
| X-Men: Mutant Academy | PSX | | Original, SuperLite 1500 Series | | SLPM 86765 … | |
| X-Men: Mutant Academy & Spider-Man | PSX | | Promotion Taikenban | | SLPM 80609 | |
| X2: No Relief エックス2 | PSX | | Original | | SLPS 00766 | |
| Xenogears (Disc 1) ゼノギアス | PSX | | Original, Square Millennium Collection: Wong Fei Fong Edition, PSone Books | | SLPS 01160 … | |
| Xenogears (Disc 2) ゼノギアス | PSX | | Original, Square Millennium Collection: Wong Fei Fong Edition | | SLPS 01161 … | |
| Xevious 3D/G+ ゼビウス3D/G+ | PSX | | Original | | SLPS 00750 | |
| XI [sái] | PSX | | Original, PlayStation the Best, PSone Books | | SCPS 10051 … | |
| XI [sái] | PSX | | Taikenban | | PAPX 90032 … | |
| XI [sái] | PSX | | Demo Disc | | PAPX 90037 | |
| XI [sái] Jumbo | PSX | | Original, PlayStation the Best, Sample | | SCPS 10123 … | |
| X-treme Racing SSX エクストリーム・レーシング SSX | PS2 | 1.00 | Original | | SLPS 20025 | |
| X-treme Racing SSX エクストリーム・レーシング SSX | PS2 | 1.00 | Taikenban | | PCPX 96310 … | |
| XI [sái]: XI-Go XIゴ | PS2 | 1.00 | Me kara Uroko Taikenban | | PAPX 90229 | |
| XI5: Aqui Ohyeongje XI5 ~아쿠이 오형제~ | PS2 | 1.00 | Cheheompan | | SCKA 90003 | |
| XII Stag トゥエルブスタッグ | PS2 | 1.01 | Original | | SLPM 62318 | |
| XIII ⅩⅢ ~サーティーン~ | PS2 | 1.00 | Taikenban | | PAPX 90235 | |
| X Japan: Virtual Shock 001 | SS | 1.000 | Original | | GS-9023 | |
| X-Men vs. Street Fighter エックスメンVS.ストリート・ファイター | SS | 1.002 | Doukonban | | T-1226G | |
| X-Men vs. Street Fighter エックスメンVS.ストリート・ファイター | SS | 1.002 | Original | | T-1227G | |
| X-Men: Children of the Atom エックス・メン ~チルドレン・オブ・ジ・アトム~ | SS | 1.000 | Original | | T-1203G | |
| Xevious ゼビウス | PC | | Ultra 2000/Ultra Series | | MKW-157 | |
| Xiaoao Jianghu Zhi Riyue Shenjiao (Disc 2) (Di-Er Zhang) 笑傲江湖之日月神教 | PC | | Original | | | |
| Xiaoao Jianghu Zhi Riyue Shenjiao (Disc 3) (Di-San Zhang) 笑傲江湖之日月神教 | PC | | Original | | | |
| Xin Xianjian Qixiazhuan (Disc 1) (Di-Yi Zhang) 新仙剑奇侠传 | PC | | Ling'erban, Xianjian Zhenqing Huikui Xilie | | No.028 | |
| Xin Xianjian Qixiazhuan (Disc 2) (Di-Er Zhang) 新仙剑奇侠传 | PC | | Original, Ling'erban, Xianjian Zhenqing Huikui Xilie | | No.028 | |
| Xin Xianjian Qixiazhuan (Disc 3) (Di-San Zhang) 新仙剑奇侠传 | PC | | Original, Ling'erban, Xianjian Zhenqing Huikui Xilie | | No.028 | |
| Xin Xianjian Qixiazhuan (Disc 4) (Di-Si Zhang) 新仙剑奇侠传 | PC | | Original, Ling'erban, Xianjian Zhenqing Huikui Xilie | | No.028 | |
| Xuan-Yuan Jian 3 Waizhuan: Tian Zhi Hen (Anzhuangpian 2) 軒轅劍參外傳:天之痕 | PC | 1.0 | Original, Xuan-Yuan Jian 15 Zhounian | | | |
| Xuan-Yuan Jian 3 Waizhuan: Tian Zhi Hen (Anzhuangpian 1) 軒轅劍參外傳:天之痕 | PC | 1.0 | Original, Xuan-Yuan Jian 15 Zhounian | | | |
| Xuan-Yuan Jian 3 Waizhuan: Tian Zhi Hen (Disc 4) (Donghua Ziliao) 軒轅劍參外傳:天之痕 | PC | 1.0 | Original, Xuan-Yuan Jian 15 Zhounian | | | |
| Xak サークⅠ・Ⅱ | PCE | | Original | | TJCD2032 | |
| Xak III: The Eternal Recurrence サークⅢ | PCE | | Original | | HECD4013 | |