Prisoner's Dilemma
Can you trust a stranger you'll never speak to?
Cooperation Rate by Round
Does the end-game defection cascade emerge in AI personas?
Stag Hunt
Why risk the hunt when you can pocket both rewards for free?
Stag-Choice Rate by Round
Do AI personas sustain coordination, or cascade to the safe Rabbit choice?
Beauty Contest
Don't pick what you think is best — pick what you think others think is best.
Winning Choice Distribution — Round 1
PMF of round-winning guesses (closest to ⅔ × mean). Lower choices signal deeper strategic reasoning.
Golden Ball
Everyone can share — or one person can take it all.
Split Rate by Round
Does cooperation erode as the game progresses? AI personas vs human baseline.
All-Pay Auction
The winner takes the prize — but everyone pays their bid.
Bid Distribution — Round 1
PMF of first-round bids (prize = 100). Humans show escalation bias, AI closer to Nash.
Volunteer's Dilemma
Someone must volunteer — but who wants to be the one who pays?
Volunteer Rate — Round 1
Probability of volunteering (N=5). Humans show higher volunteering due to altruism.
Public Goods Game
Contribute to the common good — or free-ride and let others pay?
Contribution Distribution — Round 1
PMF of contributions to public pool (endowment = 20). Humans show conditional cooperation, AI may defect more.
Colonel Blotto
Allocate your troops wisely — concentrate or spread?
Allocation Strategy Distribution — Round 1
PMF of allocation patterns (6 troops, 4 battlefields). Humans over-concentrate, AI spreads more.
Trolley Problem
Two moral dilemmas — where do you draw the line?
Classic Trolley — Pull Lever or Do Nothing?
Most pull lever (redirect threat). AI shows higher utilitarian rate.
Fat Man Variant — Push or Do Nothing?
Most refuse to push (active killing). AI shows much higher utilitarian rate.
Ultimatum Game
Divide the money — if they accept