Geode Cascade

Swap cut stones, line up three and set off cascades.

Swap neighbouring stones to line up three or more and watch the rest tumble into new lines. Four in a row forges a flame stone, an L or a T a star, five a prism that takes every stone of one colour. Crack crusted floors and break boulders across 20 levels in four acts, from the shallows to the mother lode, with a hint whenever you're stuck. Then dig through endless stages with a leaderboard.

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