The refreshed attack has wiped US$60 billion of value off Tencent's value. Photo credit: Getty Images China's Tencent said it would further curb minors' access to its flagship video game, hours after its shares were battered by a state media article that described online games as "spiritual opium". Economic Information Daily cited Tencent's Honor of Kings in an article in which it said minors were addicted to online games and called for more curbs on the industry. The outlet is affiliated with China's biggest state-run news agency, Xinhua. The broadside re-ignited investor fears about state intervention after Beijing had already…