FYI - PacMan and XangQi are by a BBF member here, Benny Chow. He's got a thread for these games on the forum.
Monopoly Tycoon is a commercial game, it was only free to the first 10,000 people to sign up at the BB Owner's Lounge back in September. It is not legal to offer it free to other people, this would be piracy. The fact that the downloads were on Rapidhare.de should be a good hint.