(AOF) – The shares of American video game publishers are expected to fall on Wall Street as the Chinese authorities continue to tighten the screws on the sector. Beijing has released draft regulations for online gaming that include restrictions on incentives to play or spend more online, the Wall Street Journal reports. On the Hong Kong Stock Exchange, Tencent shares fell more than 12%. In recent years, Chinese authorities have launched a campaign aimed at limiting the time spent by Chinese people on video games.