Gabriel Knight 3: Blood of the Sacred, Blood of the Damned

 is the third and final game in the Gabriel Knight series of adventure games by Sierra Online. The game was designed by Jane Jensen, Gabriel Knight's creator. In a departure from the previous two entries, the score is composed by David Henry, expanding on some of original composer Robert Holmes's themes. The game also sees Tim Curry return in the role of Gabriel although the voices of other re-occurring characters such as Grace and Mosely have been recast. It was released in 1999 for PCs and again in 2001 as a part of Sierra's Best Seller Series.

Each installment in the Gabriel Knight series has had a significant change in graphic design, with the first featuring computer-generated, partially rotoscoped graphics as well as scanned comic book art and the second being entirely FMV. Gabriel Knight 3 is the first game in the series to be in full 3D. Despite critical and financial success[citation needed] it would be the last adventure game published by Sierra.

The plot of the game now concentrates on vampires (previous titles concentrated on the paranormal aspects of Voodoo, and werewolves) but also has a great deal to do with the history of the Knights Templar, the proposed conspiracies relating to the Freemasons and The Priory of Sion as well as Jesus.

Blurb
"High in the mountains of France, the unassuming town of Rennes le Chateau hides an insidious secret. One begins to suspect that everything in the restful countryside is not as peaceful as it appears. Before Gabriel Knight and Grace Nakimura are done, they must rescue a missing heir and reveal secrets buried not only in the hills of France but in the lineage of Gabriel Knight himself."

Overview
The engine used in this game is the third-person 3D system used in King's Quest VI, and Tim Curry returns as the voice of Gabriel Knight. Gabriel Knight III is the last adventure game published by Sierra Entertainment to date.

Portions of the plot are loosely inspired by the theories presented in the book Holy Blood, Holy Grail. As in the second episode, the game shifts back and forth between Gabriel and Grace as main characters.

Plot synopsis
A family of nobles summons Gabriel to France to investigate the abduction of an infant boy near the town of Rennes-le-Château. The town's legendary treasure, sought for centuries and rumored to be linked to the Knights Templar, makes for an intriguing enough backdrop, but soon it appears that vampirism may be involved in the abduction.