Welcome to the Mac500 Home Page
Mac500 is a Macintosh version of the popular card game Five Hundred. You and your computer partner play against two computer opponents. Mac500 allows you to choose some of the most popular variations of the rules of 500, it keeps a history of games and bids won and lost by you and your opponents, and it shows you suggested bids and plays, if you wish. You can download Mac500 from this site to try it out.
During the bidding rounds your hand is displayed at the bottom of the window, the bids are displayed in the center of the window, and there is a bidding panel on the right where you enter your bids.
If you win the bid, the display shows the kitty merged into your hand. You can then toggle any of the cards up and down. When you have all of the cards you want to discard toggled up, you click the discard button.
During play the current trick is displayed in the center of the window, and when everyone has played the winning card is highlighted. The current bid and tricks won and lost are in the right scoreboard.
The Rules Preferences options allow you to choose between a 45 card deck and a 43 card deck, between one round of bidding and multiple rounds, and whether to play six bids or not. 
The Players Preferences options allow you to change the names of the players and to change the bidding styles of the computer players.
The History panel shows the games won, bids made, and bids set for you and your opponents.
The Options panel gives you two methods for ending tricks, options for showing suggestions and an option to use a concede/lay down button.
Version 1.2 improves the bidding and playing of the computer players, adds an option to concede a hand when one player has all trump and the opponents are out of trump, adds an option to go to the next trick using a time delay rather than the continue button, and other enhancements.

The registration fee for Mac500 is $10 US, and easy registration instructions are included with the program. Before you register, each time you run the program, it will quit after 15 minutes of play and preferences settings are not saved.

The current version is 1.2
Download Mac500 now
 The downloaded Mac500 file is compressed. You will need Alladin Stuffit Expander to expand the file.  If you don't have a copy of Stuffit Expander, you can download it for free from The Stuffit website.
                                       Mac500 is written by David Risvold.  Contact him at daveris@mac.com