The People's Republic of China is building a great economic wall around its domestic online gaming industry. Reuters reports the General Administration of Press and Publication (GAPP) is prohibiting investment by foreigners in the industry, through either "joint ventures, wholly owned enterprises and cooperatives."

To keep things even more in-house, the order also forbids foreign companies from influencing Chinese gaming firms through technology or other support agreements. The GAPP estimates the Chinese online market is worth about $4 billion.

This article was originally published on Joystiq.

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