Triplex plays on a hexagonal board. The board itself is divided in several hexagons.
Each player possesses one of the following piece : a cylinder, a cube, a parallelepiped (right triangular).
Each piece can move on the board according to different rules.
It is allowed to superimpose several pieces on one another, e.g. a cube over the cylinder. The "new piece" created then possesses the characteristics of the piece which is at the top.
A player wins when he is the first one to superimpose its 3 pieces on the central hexagon.
Pieces can fight against one another. When a fight is lost, the piece goes back to the edge of the board, on the hexagon where it started.
The strength of each piece is inversely proportional to the number of hexagons it can move.