The Entertainment Software Association (ESA) spent $1.1 million lobbying on behalf of US game publishers and developers in the second quarter of 2010.
The figure is down five per cent on the trade association's spend in the second quarter of 2009 and the first quarter of this year, the Associated Press reports.
The ESA lobbied lawmakers and government groups including Congress, the Federal Trade Commission, the Department of Homeland Security and the FBI on issues such as First Amendment protection, parental control technology, piracy, industry ratings and the regulation of game content.
The organisation is currently campaigning against a struck-down California law that would restrict the sale of violent games to minors. Despite being deemed unconstitutional at federal court level, the Supreme Court said in April that it will review the law – which was signed by governor Arnold Schwarzenegger five years ago and has recently gained support from eleven other states - during its next term beginning in October.