Obsidian Eclipse is the first of a series of adventure and resource books for the Obsidian Twilight game setting, which is written for the Pathfinder RPG. The aim of these books is to provide some more background information, useful rules expansions and easily used adventures to aid in the playing and understanding of the Obsidian Apocalypse setting. Obsidian Eclipse is a series of adventure and resource books for Obsidian Twilight. Each sourcebook will explore different aspects of Abaddon and fill out some of the details about the world, its people, magic, societies and other details as well as showing how these work in the context of an adventure. These adventures can work as starting points for your own adventures or as ‘side quests’ from the main thrust of your campaign, splashes of local color and incidents while the broader material can inspire and influence your campaign and spark new ideas or add individuality to your player and non-player characters.