Gameplay
Broken Sword is a 2D adventure game played from a third-person perspective. The player uses a point-and-click interface to interact with the environment and to guide protagonist George Stobbart through the game's world. To solve puzzles and progress in the game, the player collects items that may be combined with one another, used on the environment, or given to non-player characters (NPCs). The protagonist converses with NPCs via dialogue trees presented through "conversation icons" to learn about the game's puzzles and plot. Clues and other information are obtained by clicking on items in the inventory and on objects in the environment. The player navigates with a map, to which new locations are added as the story unfolds. Unlike in most adventure games at the time, the protagonist's death is possible, after which the player starts from the last save point.
Plot
See also: Extended plot in the Director's Cut
As the game begins, American tourist George Stobbart witnesses a terrorist attack at a café in Paris, during which a clown steals an old man's briefcase and detonates a bomb. Soon after, George meets Nicole Collard, a journalist who is photographing the scene. George investigates the area to help Nicole gather information about the attack. He finds the clown's discarded nose, a tissue covered in theatrical greasepaint, and a piece of fabric from the clown's jacket in the sewers around the cafe and learns that a man was seen escaping with a briefcase. After Nicole discovers the address of a costume shop inside the clown nose, George learns from that shop's owner that the nose and theatrical greasepaint had been purchased by a man named Khan.
George travels to the hotel where Khan is staying, where he obtains an ancient manuscript from Khan's hotel safe. After evading two hired thugs, Flap and Guido, George takes the manuscript to Nicole, who deduces that it is related to the Knights Templar. In a nearby museum, George finds a tripod that is illustrated in the manuscript. He soon travels to the excavation site in Lochmarne, Ireland where the tripod had been discovered; and, there, he obtains a gem identical to one on the manuscript. After facing a goat, George finds an entrance to a Templar chapel beneath the local castle ruins, where he discovers a mural of a hanged man with "Montfauçon" written underneath.
George returns to Paris and learns from Andre Lobineau, a colleague of Nicole's, that Montfauçon is a location in Paris. Flap and Guido attempt to steal the tripod from the museum; but they are beaten to the theft by Nicole, who gives the artifact to George. In the sewers of Montfauçon, George spies on a secret meeting of people who claim to be the Templars, and he learns of their plan to find the Sword of Baphomet. After the group leaves, George uses the tripod and gem in the underground chamber to reveal the name of a village in Syria: Marib. He travels to the village and discovers that Khan has been looking for him. At a nearby rock formation called the Bull's Head, George finds a lens and deduces that it is represented on the manuscript as a crystal ball. He also discovers an idol with three bearded faces, Baphomet; and a Latin inscription that describes Britain. Khan arrives and holds George at gunpoint, but George manages to escape.
Back in Paris, George learns from Andre that the manuscript mentions the Spanish De Vasconcellos family, who were once connected with the Templars. At the family's villa, George speaks to the family's sole surviving member, a Countess, who leads him to the De Vasconcellos mausoleum. There, George discovers the family's chalice, which the Countess entrusts to George. She asks him to find her missing ancestor, Don Carlos. In Paris, George uses the lens in the church at Montfauçon and discovers a hidden image of a burning man. In the church, George find Don Carlos' tomb, which is inscribed with a series of biblical references.
Andre reveals that an idol of Baphomet has been discovered in Paris, and George gains access to the excavation. Using the chalice, he discovers an image of a church with a square tower. George returns to the Countess, and he discovers that the biblical references show a secret area inside a well containing a chessboard mural with a river running through it. Compiling their clues, George, Nicole, and Andre decide that the Templars are going to Bannockburn, Scotland. George and Nicole board a train, but she and an old woman in their compartment soon go missing. He reaches the conductor's carriage, where the old woman, Khan in disguise, throws Flap out of the carriage. However, Khan is shot and killed during the confrontation. George and Nicole reach the church in time to see the Grand Master of the Templars acquire a power from two huge Baphomet idols—the Sword of Baphomet, or the Broken Sword. After trying to tempt George to join their ranks, the Grand Master orders the couple to be killed, but they escape with the aid of explosives Khan had given Nicole before his death. The church explodes, killing Guido, the Templars, and—presumably—the Grand Master. The game ends with George and Nicole's first kiss.