51 is a Card app developed by Lucky Double Games. You can play 51 on PC after downloading an Android emulator from this page.
Android emulators are software that run a virtual Android device on your computer. LDPlayer is one of these Android emulators for Windows PC.
LDPlayer also provides additional features such as multi-instance, macros, operations recording, and others. Using the Android 9.0 system, LDPlayer can help you play mobile games on PC with faster performance and higher FPS.
LDPlayer is meant for hard-core mobile gamers.