China's self-developed games expanded their presence in the overseas market in 2021, with actual sales revenue totaling $18.01 billion, surging 16.59 percent year on year, according to a report released by CNG, a research institute on the gaming industry.

The U.S., Japan and the Republic of Korea are the three major overseas markets for China-developed games, contributing to nearly two-thirds of all overseas revenue, the report noted.

Being one of the most lucrative markets in China, the gaming market reported robust growth in 2021, seeing its annual actual sales revenue stand at 296.51 billion yuan (about $46.62 billion), nudging up 6.4 percent year on year.

The report also showed that the actual sales revenue of the mobile gaming market, the bulk of the country's gaming market, rose 7.57 percent year on year to 225.54 billion yuan in 2021.