Wu Yongning built up a social media following on Weibo with his videos showing him on top of buildings without any safety equipment, according to the BBC.
Yongning stopped posting in November and fans feared something happened to the climber. His girlfriend confirmed in a social media post that the 26-year-old died on Nov. 8.
A family member said he was participating in a "rooftopping" challenge worth 100,000 yuan ($15,000 USD) in prize money, according to the South China Morning Post.
Yongning's step-uncle Feng Shengliang said the daredevil risked his life for the cash so he could marry his girlfriend and take care of his mother.
