Crystallo

Crystallo is a solo puzzle/abstract card game with a light fantasy theme. Explore the cavern lair of the wicked Black Dragon by placing cards, free six magical creatures by creating crystal sets, and — if you succeed — trap the dragon in his own cave. Collect treasure along the way, and you may emerge a wealthy champion!

Crystallo is played with a deck of 54 illustrated cards and 18 gems, and runs about 20–30 minutes.