We all know the Chinese mobile games market is growing quickly.

Nevertheless, the news from Chukong is surprising.

Updating figures from October 2010, it now says it's generating $6.28 million per month from its more than 120 million downloaded Fishing Joy franchise, mainly from China.

That's up significantly from the original $1.6 million per month headline.

Nation of billion

This level of revenue has come as Chukong has expanded Fishing Joy 1 and 2's active audience to 10 million daily active users.

Chukong (part of the CocoaChina group) says this growth comes as a combination of the underlying vibrancy of the China mobile market, together with improvements to the way it distributes and monetises the games.

In particular, it points to its ability to succeed within China's highly fragmented Android markets. For example, there are over 200 Android-based app stores in China, while carrier-based billing is crucial in a country with a very low percentage of credit card accounts.