Crosshairs is a combinatorial game with a WW1 aerial combat theme. Players each have a squadron of planes and move all of their planes each turn. Movement consists of either a) a straight pass flight (no altitude change) b) a climb (increasing the height of the piece by adding an additional ring) or c) a dive (losing height to make a sequence of moves by removing one ring per descent height). Pieces are captured when they are in the line of fire of two or more enemy planes. Clouds block line of fire and provide strategic cover during play. If a player is reduced to having only one plane, he's shot from the sky (i.e., is eliminated from the game). A player wins when he reduces the only remaining opponent to only one plane. Games are brutal, fast, and fun. The base game includes components for a 2-player game. If you wish to add more players you'll need the expansion (one per additional player). COMPONENTS (NESTORGAMES edition) Base game (2 players): Board (2 pads), 16 foam clouds, 40 altitude rings (laser cut 8mm 'ice' acrylic), 2 small plastic boxes, 5 red biplanes, 5 green biplanes, carrying case. Expansion (per extra player): 5 biplanes (orange or yellow), 20 altitude counters, carrying case. Please indicate colour if you purchase one set only. You can see the biplanes in the pictures below.