Frost Vault ↗
Collect crystals across 40 sliding ice puzzles.
AYE.GG / PUZZLE CAMPAIGN
Color Stack
Move top tokens between tubes until every full tube holds one color.
Level 1 of 80
Moves0
Best—
Progress1 / 80
Choose a source, then a destination. You can move a token onto the same color or into an empty tube. Two empty tubes give you room to reorganize. Keyboard focus stays with the rebuilt board or palette after a move. If that control becomes unavailable, focus moves to an available choice; completing the puzzle leads to Next level. Composing input and keys already handled by another control do not trigger game moves or Undo; Ctrl/Cmd/Alt shortcuts stay native.
Progress stays on this device.
How to play Color Stack
Choose a source, then a destination. You can move a token onto the same color or into an empty tube. Two empty tubes give you room to reorganize. Keyboard focus stays with the rebuilt board or palette after a move. If that control becomes unavailable, focus moves to an available choice; completing the puzzle leads to Next level. Composing input and keys already handled by another control do not trigger game moves or Undo; Ctrl/Cmd/Alt shortcuts stay native.
The campaign has eighty distinct, reproducible boards. You can revisit unlocked levels and improve your best move count.
Levels 51–80 use four-token tubes; the last fifteen introduce a sixth color. Preserve an empty tube when moving a mixed stack.