Crystal Cave

In this simple puzzle game players try their hand at arranging molecules with different shapes and properties into an ordered, stable configuration.

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Crystal Cave

  • This simple puzzle game introduces kids to crystals! Players join the kids of the Yard and try their hand at arranging molecules with different shapes and properties into an ordered, stable configuration. Learn about crystals, repeating patterns, and molecular charges.

    The Crystal Cave is part of the Yard Games, our collection of middle school science games. Designed as playful introductions to complex topics, the games are online and free to play.

A puzzle game interface with interconnecting circles forming a grid pattern. The background is blue with crystal shapes. The menu options 'Menu,' 'Clear,' 'Grow Crystal' are visible, and 'Crystal Stability: 20' with a star rating is displayed.
Digital card displaying an amethyst crystal with the text: "Amethyst unlocked in Crystal Museum!" and an "Ok" button. The background features a geometric pattern with blue hues and dots.
Comic panel showing a discussion about crystals, with characters talking about how crystals form in nature. There's an illustration of a molecular pattern representing crystal structure, and a drawing of a cluster of crystals. One character reads about crystals, while another tends to a garden.
"Crystal Cave" game level selection screen with circular icons, each labeled with an "X" and number denoting different levels. Some circles have connected black shapes and star ratings. Decorative crystal graphics appear around the screen.