Officials say regulations are meant to curb video game addiction, which they blame for a rise in nearsightedness and poor academic performance. BEIJING — No playing video games after 10 p.m. No more than 90 minutes of gaming on weekdays. Want add-ons like virtual weapons and costumes? Keep it to $57 a month. The Chinese government has released new rules aimed at curbing video game addiction among young people, a problem that top officials believe is to blame for a rise in nearsightedness and poor academic performance across a broad swath of society. The regulations , announced by the National Press and Publication Administration on Tuesday, ban users younger than 18 from playing games between 10 p.m. and 8 a.m. They are not permitted to play more than 90 minutes on weekdays and three hours on weekends and holidays. The limits are the government’s latest attempt to rein in China’s online gaming industry, one of the world’s largest, which generates more than $33 billion in a