The Beast Within: A Gabriel Knight Mystery is an interactive movie point-and-click adventure game released by Sierra On-Line in 1995. Unlike the first Gabriel Knight game, released in 1993, The Beast Within was produced entirely in full motion video. The technology was popular at the time of the game's production with the recently introduced storage capabilities of CD-ROMs, but was expensive to produce. The third Gabriel Knight game used a rendered 3D engine.
In 1996, Computer Gaming World magazine named it their game of the year.
The Beast Within is a point-and-click adventure game, played from a third-person perspective. The game is divided into six chapters and the player controls Gabriel and Grace alternately between the chapters. They conduct their investigations separately for the most of the game, only joining forces in the finale.