Strategies

Parameters

Rounds per match N: 200 Noise ε: 0.0% Speed

Payoffs

T (temptation): 5 R (reward): 3 P (punishment): 1 S (sucker): 0

Stats

Progress0 / 0

Leader—

TFT rank—

Avg cooperation0%

Total C actions0

Axelrod 1980. Strategies play every other (and themselves) in round-robin IPD. Payoffs satisfy T>R>P>S and 2R>T+S. Tit-for-Tat — cooperate first, then copy opponent's last move — won. Lesson: be nice, retaliatory, forgiving and clear. With noise > 0, plain TFT spirals into mutual defection; Generous TFT escapes by occasionally forgiving.