China has approved the release of dozens of new video games, boosting the shares of some of its biggest tech firms on Wednesday.

Officials in China – the world's biggest gaming market – rolled out a series of restrictions last year, including capping the amount of gaming time for children with the stated aim of fighting addiction and freezing approvals for new games for nine months.

China's National Press and Publication Administration said on Tuesday it had approved 60 new games, following the year's first batch of approvals in April.