Desire has consequences.
Heartline is a complete d6 romance-and-melodrama system for creators building worlds where who you choose changes what you can keep. Relationships track each side separately. Attraction never stands in for consent. Secrets can become leverage, rumors can become scandals, and Heat pushes every Archetype toward a Break Point. One scene-roll procedure keeps play fast and reliable. The system includes 8 Archetypes, 3 Drama Frames, 16 file types, creator examples for every type, a Player Handbook, a Builder Manual, and focused GM guards. Use it for dynasties, academies, small towns, celebrity circles, gothic households, courts, or any social arena where romance collides with reputation, duty, rivalry, family, and ambition.
Heartline is an original Craft-native romance and melodrama system built for reusable Worlds rather than one canonical setting. Its design priorities are fast AI execution, asymmetric relationships, explicit social state, player agency, and consequences that come from established people and institutions.