hi
I am not sure what you meant by the question.If you know how to write an applet then you can easily write any game.
I made some small simple games/puzzles like picture scrambler, crosswords and multiplayer games like Tic-Tac-Toe and chess. In Chess, Chess applets are to be loaded by two players in their own systems(PC). There will be a common server(
servlets). Any change(moving the chess soldiers etc) in one applet is sent to the server. The 2nd applet retrieves these changes from the server and updates its display. Similarly the 1st applet also updates its display according to the changes made in the 2nd applet.
In this way two players sitting anywhere in the world can play chess. This is a simple way of playing chess through net

. There might be better way of doing so, I dunno.
you can visit my site:
http://tanveer.freeservers.com and go to the 'fun' link to view some of the simple games. You can find some games made by others too.
regards
Tanveer