| Xiake Chuanqi | CN | |
Shenzhen Jncota | Unlicensed |
| Xiake Qing - Jingke Ci Qinwang | CN | |
| Unlicensed |
| Xiang Shuai Chuanqi | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Xianjian Qi Xia Zhuan | CN | |
| Unlicensed |
| Xianjian Shenqu | CN | |
| Unlicensed |
| Xianjian Wen Qing | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Xianjie Jingling | CN | |
| Unlicensed |
| Xiao Ao Jianghu | CN | |
| Unlicensed |
| Xiao Ao Jianghu - Qun Xia Ji | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Xiao Boshi Jiaoyu Ruanjian Xilie - Zhili Xiao Zhuangyuan | AS | |
| Unlicensed |
| Xiao Mali | AS | |
| Unlicensed |
| Xiao Mali | TW | |
Idea-Tek | Unlicensed |
| Xiao Zhuangyuan | CN | |
| Unlicensed |
| Xiao Zhuangyuan Shuxue 7-in-1 | CN | |
| Unlicensed |
| Xiaobawang Zhongyingwan Diannao Xuexiji III - Yujiao Yule | AS | |
| Unlicensed |
| Xiaoxuesheng Shuxue CAI | CN | 1996 |
Waixing | Unlicensed |
| Xin Bao Qingtian - Super Justice King | CN | |
| Unlicensed |
| Xin Mojie | CN | |
| Unlicensed |
| Xin Shanhai Jing I - Guaishou de Chuanshuo | CN | |
| Unlicensed |
| Xin Yingxiong Zhuan | CN | 1992 |
Shenzhen Nanjing Technology | Unlicensed |
| Xin Yue Jian Hen | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Xing Zhan Qingyuan | CN | 1996 |
Henggedianzi | Unlicensed |
| Xinghe Zhandui | CN | |
| Unlicensed |
| Xinghe Zhanshi | CN | |
| Unlicensed |
| Xingji Wushi - Super Fighter | CN | |
| Unlicensed |
| Xingji Zhengba | CN | |
| Unlicensed |
| Xitian Qujing - Journey to the West | AS | 1994 |
Micro Genius | Unlicensed |
| Xitian Qujing II - Journey to the West | CN | |
| Unlicensed |
| Xiyou Ji Hou Zhuan | CN | |
| Unlicensed |
| Xuanyuan Jian - Feng Zhi Wu | CN | |
| Unlicensed |
| Xuanyuan Jian - Tian Zhi Hen | CN | |
| Unlicensed |
| Xuanyuan Jian - Wangzhe Guilai | CN | |
| Unlicensed |
| Xuanyuan Jian - Xian Zhi Yuan | CN | |
| Unlicensed |
| Xuanyuan Jian - Yun de Di Duan | CN | |
| Unlicensed |
| Xuanyuan Jian Waizhuan - Zhi Tian Zhi Hen | CN | |
| Unlicensed |
| Xuanzhuan Jiansi - Yumao Chuanqi | CN | |
| Unlicensed |
| Xun Qin Ji | CN | |
Nanjing | Unlicensed |
| Xybots | US | 1991 |
Atari | Prototype |
| Ya Te Lu Zhan Ji | CN | |
Waixing | Unlicensed |
| Yacht | WORLD | |
| Unlicensed |
| Yamamura Misa Suspense Series - Kyoto Zai-Tech Satsujin Jiken | JP | 1990-11 |
HectorSoft | Commercial |
| Yami no Shigotonin Kage | JP | 1990-08-10 |
Taito | Commercial |
| Yami no Shigotonin Kage | JP | 1990-08-10 |
Taito | Demo |
| Yang Jia Jiang - Yang's Troops | CN | |
Waixing | Unlicensed |
| Yar's Revenge | US | |
| Unlicensed |
| Yasuda Fire & Marine - Safety Rally | JP | 1989 |
Yasuda insurance company | Commercial |
| Yemingzhu | CN | |
| Unlicensed |
| Yie Ar Kung-Fu | JP | 1985-04-22 |
Konami | Commercial |
| Yin Baise Shajia | CN | |
| Unlicensed |
| Yinglie Qunxiazhuan | CN | |
| Unlicensed |
| Yingtao Xiao Wanzi | CN | 2001 |
YanCheng | Unlicensed |
| Yingxiong Chuanqi | CN | |
| Unlicensed |
| Yingxiong Yuan Yi Jing Chuanqi | CN | |
| Unlicensed |
| Yinhe Shidai | CN | |
| Unlicensed |
| Yisu - Feiergaina Zhi Shiyue | CN | |
| Unlicensed |
| Yisu VI - Nabisiting de Fangzhou | CN | |
| Unlicensed |
| Yisu de Qiyuan - Youge | CN | |
| Unlicensed |
| Yisu de Qiyuan - Younika | CN | |
| Unlicensed |
| Yitian Chuanshuo | CN | |
| Unlicensed |
| Yitian Jian Chuanji | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Yitian Tulongji | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Yixing - Zhi Taikong Tanxian Zhe | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Yo! Noid | US | 1990-11 |
Capcom | Commercial |
| Yo! Noid | US | 1990-11 |
Capcom | Prototype |
| Yongzhe Chuanshuo | CN | |
Nanjing | Unlicensed |
| Yongzhe Dou Elong - Tiankong Pian | CN | |
| Unlicensed |
| Yongzhe Dou Elong - Tiankong de Xinniang | CN | |
| Unlicensed |
| Yongzhe Dou Elong - Yongzhe de Shi Lian | CN | |
| Unlicensed |
| Yongzhe Dou Elong II - Dragon Quest | CN | |
| Unlicensed |
| Yongzhe Dou Elong III - Zuie Yuanyuan | CN | |
| Unlicensed |
| Yongzhe Dou Elong IV | CN | |
| Unlicensed |
| Yongzhe Dou Elong V - Dragon Quest | CN | |
| Unlicensed |
| Yongzhe Dou Elong VI | CN | |
| Unlicensed |
| Yongzhe Dou Elong VII | CN | |
| Unlicensed |
| Yongzhe Dou Elong VIII | CN | |
| Unlicensed |
| Yongzhe Heian Shijie - Hundun Shijie | CN | |
| Unlicensed |
| Yoshi | US | 1992-06 |
Nintendo | Commercial |
| Yoshi no Cookie | JP | 1992-11 |
Nintendo | Commercial |
| Yoshi no Tamago | JP | 1991-12 |
Nintendo | Commercial |
| Yoshi's Cookie | EU | 1994-04-28 |
Nintendo | Commercial |
| Yoshi's Cookie | US | 1993-04 |
Nintendo | Commercial |
| You Are Insignificant | WORLD | 2016-12 |
team_disposable | Unlicensed |
| Youkai Club | JP | 1987-05 |
Jaleco | Commercial |
| Youkai Douchuuki | JP | 1988-06 |
Namco | Commercial |
| Youling Lieche | CN | |
| Unlicensed |
| Youling Xingdong | CN | |
| Unlicensed |
| Youling Xingdong - Shock | CN | |
| Unlicensed |
| Yousei Monogatari - Rod Land | JP | 1992-12 |
Jaleco | Commercial |
| Youxi Baobei | CN | |
Shenzhen Nanjing Technology | Unlicensed |
| Youxi Wang | CN | |
| Unlicensed |
| Ys | JP | 1988-08-26 |
Nihon Falcom | Commercial |
| Ys II - Ancient Ys Vanished - The Final Chapter | JP | 1990-05 |
Marvelous Interactive | Commercial |
| Ys III - Wanderers from Ys | JP | 1991-09-27 |
Victor Interactive Software | Commercial |
| Ys VI - The Ark of Nephistim | WORLD | |
| Unlicensed |
| Yu Yu Hakusho - Bakutou Ankoku Bujutsukai | JP | 1993-10 |
Bandai Namco | Commercial |
| Yu Yu Hakusho Final - Makai Saikyou Retsuden | TW | 1996 |
| Unlicensed |
| Yu Yu Hakusho V 97 | TW | |
| Unlicensed |
| Yuanshi | CN | |
| Unlicensed |
| Yuanshi II | CN | |
| Unlicensed |
| Yuanshi Mali VII | AS | 1991 |
| Unlicensed |