ClickTris is a classic Tetris game where pieces fall from the top of the window until they land on another piece or the bottom. When horizontal lines are formed, they disappear and all remaining pieces shift down.

The rules of ClickTris are easy to understand. Throughout the game, pieces will fall from the top of the screen. These pieces will continue to fall until they either land on top of another piece or reach the bottom of the screen. As you play, your goal is to form horizontal lines with the pieces. When a line is completed, it disappears from the screen, and any pieces above it will fall down.
For every line that you vanish, you earn 10 points. If you manage to get rid of multiple lines at once, you'll earn even more points - an extra 10 points for every additional line you vanish. To keep the game going, you'll need to make sure there's room on the screen for new pieces to fall. You can move pieces around as they're falling to try to create the best possible formations.
Overall, ClickTris is a fun and addictive game that's perfect for passing the time. Whether you're playing on an old or new computer, you're sure to find this classic tetris game enjoyable and rewarding.
Version 1.73: Auto Pause is added. Now ClickTris will be paused anytime you minimize or disactivate the game.