Free. No ads. No in-app purchases. Pure fun and science.

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.

Shop

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