Life battle
Two players paint red vs blue on a grid, choose Life-like B/S rules, then simulate until one colour is gone or the generation cap — highest count wins a tie
About this tool
Two-player Life battle. Both players paint on the same grid: red (Player 1) and blue (Player 2). You choose an outer-totalistic rule in B…/S… form (same idea as Conway's Life: birth when the total live neighbour count is listed under B, survival when listed under S). Neighbours are any live cells, either colour. An empty cell that is born takes the colour with more live neighbours among the eight (exact ties leave it empty). Living cells keep their colour when they survive.
How to win
- Run or Step the automaton. If one colour loses all cells, the other player wins.
- If neither is eliminated before Max generations, the side with more cells wins; equal counts are a tie.
Controls
- Left-click: Player 1. Right-click: Player 2. Middle-click or Shift+click: erase.
- Optional torus (wrap edges). Drag the corner handle to resize the grid (cell size unchanged). Presets load common rules.