Gallic Puzzle is a match-three game where your mission is to collect diamonds.
There will be ten birds that will let deploy tiles on the lower rows of the board. You will have to switch those tiles so they form groups of three or more identical ones. When those groups become formed, all the tiles in it will disappear from the board, and its place will be occupied by the tiles above them. You will have to keep an eye on the piles of tiles, because if some of them reaches a bird, it will die, and you will loose a life.
Some tiles will be into blue boxes. That boxes will disappear when you form groups that include those tiles. Once that all the blue boxes disappear, a diamond will appear. You will need to get this diamond to the lower part of the board, in order to add it to the jewel that you must complete to end a level.
From time to time, you will be rewarded with some bonus articles, like hammers. Those hammers can be used to break blue boxes, or the chains that will appear, making impossible to move certain tiles.