Bookworm is a puzzling word-form puzzle game from PopCap Games. In a grid of open letters, players click letters to form words by matching the right position of the square with a colored dot. As words are formed, their positions are revealed and empty spaces collapse to fill up the available space. The word that's finally drawn is the word that began with the letter in the upper left corner. A player's goal is to find all words that are formed using the available spaces by finding the correct sequence of letters. The game ends when a player runs out of words.
As with other popcap games, bookworm adventures requires that tiles be selected using the mouse or keyboard. Tiles resemble real leaves in the garden but in the case of bookworm tiles, these flowers are shaped like worms (arrows) and filled with holes (cubes). Placing one's mouse over a hole on a file will cause it to expand, causing the adjacent tiles to collapse. In addition to the standard book shape, popcap games feature worm and butterfly shapes. These two shapes can overlap each other to form worm trails and caterpillars can fall through holes into butterfly shapes.
Bookworm can be fun and challenging for both children and adults. Tiles must be selected correctly to create words in a game that will make people sit up and take notice. When words have been created, it's time to try and figure out what the words mean. Bookworm can also be used as a teaching tool by placing the game on a chalkboard and drawing words and pictures that relate to the subject being taught. By creating longer words with fewer strokes, children will develop a sense of what a sentence looks like and be better prepared to write actual sentences in the future.