Dan Ariely’s Irrational Game

A thought provoking, fun, and engaging game, where players second-guess human nature
by predicting decisions people will make in unique situations.
Click the play button to learn more.

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How well can you predict human nature?

Who looked happier after winning Olympic medals—bronze medalists or silver medalists? Did late pick-ups increase or decrease after the daycare instituted a fine for tardiness? Human nature is a funny thing, so it’s no surprise that we’re not always rational. But are we ever rational? In this thought provoking, fun, and engaging game, players second-guess human nature by predicting decisions people will make in unique situations. The answers are backed up by research, and each card explains why we act the way we do. But the best part is the discussions it sparks . . . and the way players can use the insights in the game to understand how they make decisions, and to make better decisions that will enrich their lives.


I received my game last week and played it for the first time last night with my two college aged daughters and one of their boyfriends.
We LOVED IT. It is easily the most fun AND educational game we own.

Jon Padfield

Get your Irrational Game!

Click the button below to visit our online store.
Our Kickstarter campaign ended, but we still have some inventory left of our limited edition version, "EXTRA IRRATIONAL".

We are still accepting orders for the EXTRA IRRATIONAL Kickstarter limited edition version until we run out of inventory.

After that, only the retail version will be available for purchase.

Quantity discounts apply!

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About Dan Ariely

Prof. of Psychology

Teaches at Duke University and a founding member of the Center for Advanced Hindsight.

NYT Bestsellers Author

Predictably Irrational, The Upside of Irrationality and The Honest Truth About Dishonesty.

Wall Street Journal Columnist

Runs a weekly behavioral economics column on the Wall Street Journal.


Have played the game to great delight and discussion down the pub. Really really love this project and am so pleased to have backed it. The design is great, the content illuminating and as a game it’s good fun.

Liam Delahunty

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Did you know that our cards are huge?

We are using larger cards (3.5” x 5.75”).

These allow players to show the experiment description and illustration to other players, and question cards will be easier to read this way.



Browse our most recent photos of the game below.

Question Cards
Question Cards
The Deck
Question Cards
The Deck
The Deck
Power Cards
Power Cards
Power Cards

The Rules

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