From Legacy Interactive: In each case, set in Victorian London, players encounter the following puzzles: a hidden object puzzle, Sudoku, find the difference puzzle, and a picture memory game. There are also additional puzzles and mini-games such as anagrams, cryptograms and jigsaw memory games, which are available at various levels. Legacy has gone to great lengths to insure that the puzzles and mini-games are relevant to the period and storyline of the game as the player journeys from locales such as the British Museum, Big Ben, Kew Gardens, the Royal Theater and others in search of clues that are then evaluated back at 221b Baker Street.