Stylized logo of The Yard Games with a white pennant design and black text.

Crystal Cave

This simple puzzle game introduces kids to crystals! Players try their hand at arranging molecules with different shapes and properties into an ordered, stable configuration.

Play Game
Puzzle game interface with white and gray dots connected by lines on a grid, labeled 'Crystal Stability: 20'. Includes 'Menu' and 'Clear' buttons.

  • 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.

  • Link to curriculum

  • Field Day Lab