It's fully free, except for ad banner. explanation: as a variant of hexa game, how to play is very simple. just make a horizontal, vertical or diagonal line with over three stones in the same color and if you succeed in it, they will explode themselves and all over them will fall down. score: a removal : +1 (so you will get at least over 3 points.) removal of more than two lines at one dropdown: +50 explosion of more than three times in sequence: times x 30 control: to move to left or right: swipe (touch and drag) to rotate: just touch down and release. to fall down: just drag down.