China is banning children from playing online games for more than three hours a week, the harshest restriction so far on the game industry as regulators in the country continue.
Minors in China can only play games between 8 p.m. to 9 p.m. on Fridays, weekends and on public holidays starting September 1, according to a notice from the National Press and Publication Administration.
That limits gaming to three hours a week for most weeks of the year, down from a previous restriction set in 2019 that allowed minors play games for an hour and a half per day and three hours on public holidays.
The new regulation affects some of China's, including gaming giant Tencent whose Honor of Kings online multiplayer game is hugely popular globally, as well as gaming company NetEase.
Tencent's stock price closed down 0.6% at 465.80 Hong Kong dollars on Monday ahead of the regulator's announcement. Its market capitalization of $573 billion is down more than $300 billion from its February peak, a decline equal to more than the total value of Nike or Pfizer.
New York-listed NetEase's stock was down about 9% at the market's open.
The gaming restrictions are part of the Chinese government's ongoing crackdown on domestic tech companies amid concerns that such businesses — many of which provide ubiquitous messaging, payments and gaming services — have an outsized influence on society.
Earlier this month, Tencent said it would limit gaming time for minors to an hour a day and two hours during holidays, as well as ban children under the age of 12 from making in-game purchases.
The company issued the curbs hours after a state-affiliated newspaper, Economic Information Daily, criticized the gaming industry and called games "spiritual opium." Tencent's stock price plunged as much as 11% soon after.
In the U.S., critics have long complained about the, prompting concerned parents to limit their children's playing time.
Chinese regulators said in Monday's notice that they would strengthen supervision and increase the frequency of inspections of online game companies to ensure that they follow the regulations closely.
Chinese authorities in recent months have targeted ecommerce and online education, and have implemented new regulations to curb anti-competitive behavior after years of rapid growth in the technology sector.
Last month, authorities banned companies thatin core school subjects from making a profit, wiping out billions in market value from online education companies such as TAL Education and Gaotu Techedu.
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