Descend into madness with this streamlined introduction to the award-winning Heart RPG. The Heart is a writhing wound in reality beneath the city of Spire—a place of unknown passages, ancient secrets, forgotten shrines, and nightmarish creatures unlike anything seen in the world above.

Step into the role of delvers—strange, desperate souls drawn to explore this nightmare city in search of their deepest obsessions. This quickstart guide provides everything you need for your first journey into the City Beneath.

Inside you'll find:

• Complete rules for adventuring, losing your mind, and meeting your inevitable end in the Heart
• Five ready-to-play characters with advancement options—including the magic-addicted Junk Mage, the fanatical Heretic, and the honorable Vermissian Knight
• "Drowned," a full adventure where you'll brave a lost settlement to recover components crucial for stopping coral-boned monsters from flooding the Church of the Moon Beneath

Perfect for new players and Game Masters looking to experience the horrifying wonders that await in the depths.