Use your brain power to discover a mysterious land. Simple rules + challenging strategic problems. You versus Artificial Intelligence.

Players: You versus Artificial Intelligence (AI).

How to play and win
1. You and AI are assigned different colors.
2. You and AI move The Rock across the bridges. You choose among the bridges of your color, while AI chooses among the bridges of AI’s color.
3. A game ends when The Rock lands on a final node. If The Rock lands on a node of your color, then you win and AI loses. If The Rock lands on a node of AI’s color, then you lose and AI wins.
4. Every time you win a game, you gain points. Every time you lose a game, you lose a life.
5. When you have no lives left, you are unable to play more games. However, you can always exchange points for lives in the Shop.

1. You can exchange points for lives.
2. You can play lotteries to gain more points.

Science: We are two professors of economics who study how people behave. This app helps us with our research. Visit the app’s website to learn more about our scientific projects.

App Privacy

The developer, Mobile Social Sciences LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • User Content
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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