from the designer's website: Two tribes are competing for territory by breeding. Couples make babies. My most thematic game :) Population Pressure is a game for 2 players, played on a hexhex board. I recommend Hexhex5 to start. Rules 1. The board begins empty. 2. To begin, one player places one white and one black stone on any vacant spaces on the board, and the other player decides whether to play as White or Black. 3. Starting with Black, the players take turns. You may place one stone on any vacant space on each turn, until you have a group on the board of size 2 or larger. After that, on your turn you may place as many stones on vacant spaces as you have groups of size 2 or larger on the board. 4. The game ends when the board is full, and the player with the largest group wins. If the players’ largest groups are the same size, the player with the fewest stones on the board wins. On larger boards, you might experiment with higher minimum group sizes (polyamory?)