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Free to play

Game Theory Games

Take it or leave it

Ultimatum Game

New to the game? Read the theory, then come back to play.

How to play

  1. 1. Situation

    You split a pile of money. One person proposes the split; the other accepts or rejects.

  2. 2. Your move

    If you propose, choose the split. If you respond, accept or reject — rejection burns the pile.

  3. 3. Scoring

    Accept, and you both keep the proposed amounts. Reject, and both get nothing.

Accept and you both keep the split. Reject and the pile is gone.
Your role
Rounds

Opponent. Prideful — Rejects anything below 30%. Fairness matters more than a few points.