Various monsters are crawling towards your magic orb, and it's up to your skill and strategic placement of gems to stop them. Use your mana to place defense objects on the map, and make sure to keep your orb safe. Mix different colored gems together for a hybrid of abilities to assist you across dozens of maps in the final chapter of Gemcraft Labyrinth.
Click on spell buttons to select them. Drag gems to move, throw or combine them. Hold control to create/combine multiple gems, hold shift to place more than one tower/trench. P to pause
