Check the listing for details. Nephandum Campaign Setting D20 Dungeons And Dragons. Condition: Used. Listed at 30.00 USD. This Nephandum Campaign Setting for D20 Dungeons and Dragons is perfect for any character family who wants to add a unique touch to their game. The campaign is designed for those who love role-playing games and want to immerse themselves in a thrilling adventure. The setting is ideal for players who want to explore a world filled with danger and excitement. The campaign is perfect for those who love the Dungeons and Dragons game and want to add a unique touch to their game. The setting is designed for those who want to experience a world filled with adventure and danger.