Every cell is a cooperator or a defector and plays its 8 neighbours and itself. Cooperator meets cooperator: 1 point. Defector meets cooperator: b points. Everything else: 0. Then each cell copies the highest-scoring cell around it.
Tap to flip a cell. The same ?seed= always gives the same run.
LITNowak & May’s spatial prisoner’s dilemma (1992). Every 10 steps the cooperator tally must match a fresh recount, or the page throws.
WALLA game-theory model, not a moral claim.