It's the ultimate in point mining via combinations. Gem games are also games where you can line up combos and gain multipliers for every additional set of gems you cause to line up by first lining up your initial set. Gem matching games aren't just a puzzle game where you line up gems of the same shape and color in order to score points.
This is called a combo, baby, and it will go on and on as long as you play. As one row of colored gems disappears the remaining gems will be forced to move around and fall into place, when they do this they might now be matching gems which will also disappear. For each row of gems, you are able to line up with a matching color of colored gems will result in one of those lines disappearing. Treasures of Atlantis is a colorful match game.