We're happy that you're enjoying the game!

Volcanic cracks are random events, like the appearance of rain or mini-typhoons.

There are a couple puzzles that will result in your villagers getting ill, which will help you train up a master healer! Note that your villagers' skill levels are also relative to your village's overall technology levels, so make sure to increase these often.

Finally, you can only unlock the Chapter 2 puzzles when you complete Chapter 1.

We hope you continue to have fun with your Virtual Villagers!