The revenue growth of online gaming companies slid to a new low in the second quarter as the leading participants focused on migrating to the mobile Internet market with some 465 million potential customers.

China's six biggest gaming companies registered 2.5-percent year-on-year revenue growth, the slowest increase in four quarters, the companies' financial reports show. The top six vendors held more than 87 percent of the online gaming market in China.

Shanda Games Ltd, the third-largest gaming company, had the weakest performance. It said revenue was flat with the first three months.