Stacking is a game that takes place in a world inhabited by Russian dolls. The smallest doll in this world is Charlie Blackmore - and as the player, you must guide Charlie through a series of puzzles to help him reach the end of his quest. Encounter other Russian stacking dolls of different sizes, figure out how to proceed through the game's increasingly taxing puzzles, and finally go head to head with the antagonist of the story: a sinister industrialist named the Baron!