The Book of Unwritten Tales is a point and click computer game wherein the player leads the game character in the specified game area to look for items. The player also leads the character in unraveling puzzles. Locating required items and solving puzzles enable the plot to progress. There are four characters in the game. The player can control them one at a time. The game is set in a world where there is a war. This was has been destroying their homes. The primary protagonist, Wilber, wants to become a hero. He later acquires a magical ring that can bring peace. While there are 4 major characters, there are also minor characters that can aid the player by providing in-game items.
The game's main missions deal with gathering items for a specific character. This is required in advancing the game's plot. There is a tutorial at the start of the game. It demonstrates how the game works, including how to investigate the environment and how to form new items by combining them. The game also gives priority to game areas (called "hotspots") that are necessary in order for the game to advance. Hotspots let the player know which items are important in the game and which are not. Most objects needed to be found in the game are large. Each game level has at least one small object that needs to be found.