Tainted Grail: The Fall of Avalon - Sanctuary of Sarras DLC PC Steam Digital Code is a major story-driven expansion for a dark FPP RPG set in a world inspired by Arthurian legends. The expansion takes the player to a whole new land hidden beneath the waves, where the old secrets of Avalon return in an even more disturbing form. This is a proposal for people who want to return to the brutal, mature world of Tainted Grail and discover another fragment of the story related to Nimue, the rebels and Merlin's revenge.