Does China really have eight gantry games?

No. According to the official website of Qidian Chinese website, we learned.

1. Longmen Baju is a fictional place in the novel "Folk Feng Shui Master" and does not exist in China.

2. "Folk Feng Shui Master" tells a fantasy story about a Feng Shui master named Li Chengfeng who became famous in the Feng Shui world with his unique skills.