To play Letterbox without needing to be connected to the Internet, you can download the game to your own computer.

But keep visiting the Letterbox site from time to time to keep up with new features.

To download Letterbox, just save this file:

lbox.jar

(approx. 50K)

to a directory of your choosing. (Right-click on the link and choose Save Target As..., Save Link As... or Save Link Target As...) Then save the Letterbox home page ("letterbox.html") to the same directory.

Now you can open the Letterbox web page from your hard drive whenever you feel like a game!