game's engine could easily be reused for the more than one hundred unique dolls within the game. Schafer assisted in helping Petty to write the game's story and to design some of the puzzles. Schafer estimated the total budget for the game at $2 million. The game contains a central hub level, the Royal Train Station, and four additional levels that the player travels to through the Train Station. Each level was designed with a number of puzzles that allowed the player to approach in any order, while keeping the level size small and uncomplicated to prevent the player from becoming lost. Most of the puzzles have been designed with multiple solutions; Petty stated they wanted to cater to both the casual player, who may only want to find one of the solutions to progress in the game, and the more dedicated player, who would likely spend time to discover all of the intended solutions. This was furthered by allowing the player to freely roam through previously-completed areas to complete all the puzzles, including after completing the main story. The puzzles and challenges were designed to be able to be completed in short segments, giving the player more freedom to play it at their own pace. Petty wanted to make sure the player had time to contemplate the puzzles or explore the environment in a manner of older adventure games, though still assured that his environments felt alive and animated. The levels themselves are designed using a mix of the Great Depression and Victorian era designs, using virtual household items such as marbles and safety pins, an inspiration that came from interest in dioramas and miniature stages. The game itself presents cutscenes with dialog in the fashion of early silent films, where a text plaque is shown to show the dialog after it is acted out and scene takes place on a theater stage. As part of the game's promotion, Double Fine offered a set of matryoshka dolls based on characters in the game; the initial run was sold out in less than 24 hrs. THQ released a downloadable content. The first add-on, "The Lost Hobo King", has been released in April 2011, and includes new dolls and a new stage to explore. It focuses on Charlie helping Levi's uncle Rufus to find the crown to become the king of hobos in the town of Camelfoot. Stacking along with Costume