Tainted Grail The Fall of Avalon is an open-world RPG steeped in dark Arthurian mythology, set on an island of Avalon that has fallen to plague, madness, and a corrupting force known as the Wyrdness. Choices shape both story and world.

Exploration, crafting, and branching dialogue combine in a grim fantasy setting that rewards curiosity, with player decisions affecting quests, characters, and the fate of Avalon's fractured factions.