Like any other Tetris game, the goal is to get a high score by clearing rows of colored blocks as they drop from the top of the game.
In addition, you get five points for every piece dropped. The more rows you clear with a single drop, the more points you get. You achieve an Ultris when you clear four rows in a single drop.
Ultris features 25 minutes of music and good graphics. If you want to put in your own music to go along with the game, simply put a music file with a number of 1 to 6 in the sounds folder. Ultris can play just about any sound format.
For more detailed information, including on updates, please read the documentation or visit the home page.
Ultris is donationware. This means that you can use it free of charge, but you are encouraged to send a donation to the author. Any donations must be sent in the form of cash or checks. See the documentation for the author's address.