Zonko
This is a game just like Yahtzee. You can have from one to ten players. The game has sound that can be turned on or off, animation, and a top score feature.
http://gpcecil.home.mchsi.com/downloads/Zonko.zip - 540Kb - Download - Screenshot

DiceDeluxe
DiceDeluxe is a good-looking dice game with yahtzee rules designed to be attractive and easy to play. Features support for 1 up to 6 players at the same time, hints, average count and undo functionality to help you play, sounds and saved top 100 highscores.
http://www.codetouch.com/files/dicedeluxe-setup.exe - 435Kb - Download - Screenshot

Kristanix Yatzy
Kristanix Yatzy offers two different types of the game yahtzee. The regular game with five dice, and a special extended version with six dice and more categories to put points in. Don't want to play alone? The game supports up to four players simultaneously. ... Both English and Norwegian interface. ... A highscore list keeps track of the best (or luckiest if you will) yatzy players.
http://download.kristanix.com/getfile.php?fileid=3 - 173Kb - Download - Screenshot

Hooligans
Play this simply yet very enjoyable dice game that is similar to Yahtzee, with a twist. Roll the dice and select a category. Use your other two rolls to get as many of the category number as you can. Rolling a straight on the first roll of your dice gives you a Hooligan and 20 bonus points. ... tams11. ... com in order to play against other players online. ... Needs the Tams11 Lobby from http://www. ... Get big bonus points by having all five dice showing the category number by the end of your third roll.
http://www.tams11.com/hooligans/hoosetup.exe - 973Kb - Download - Screenshot