The games added are Sept. 22 against Texas and Sept. 28-29 at Chicago.
"We can't thank Jack Donovan and his staff from FOX Sports Kansas City enough for their effort in making sure our fans get the opportunity to watch the club play down the stretch," said Royals senior vice president of business operations Kevin Uhlich.
Although Fox isn't carrying the last two games of this weekend's series at Detroit, Saturday's game will be on the MLB Network and Sunday's game on TBS.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.