Play repeated rounds against classic strategies and watch cooperation pay off — or not.
Understand why rational players defect in a one-shot game, yet cooperation can emerge when the game is repeated.
With Tit-for-Tat selected, play Cooperate for several rounds.
Before you act, predict what will happen. How does the opponent respond to your cooperation? Then do it — did your prediction match what happened?
Cooperates first, then copies whatever you did last round.
| Your move | Opp. Cooperate | Opp. Defect |
|---|---|---|
| You Cooperate | 3 / 3 | 0 / 5 |
| You Defect | 5 / 0 | 1 / 1 |
Cumulative score
Total points each side has earned as rounds accumulate.