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.

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Player's HandbookVolume IHow this system plays — the rules, the dials, and the intent, straight from its author.OpenBuilder's ManualVolume IIHow to build on this system — its conventions, extension points, and design intent, for creators adopting it.OpenCompendiumReferenceEvery entry this system ships with, rendered exactly as your project will inherit them.Open
Author's note

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.

Archetype
13 fields
Drama Frame
13 fields
Character
25 fields
Episode
17 fields
Equipment
9 fields
Event
13 fields
Game Start
0 fields
Group
12 fields
Leverage
12 fields
Location
12 fields
+6more types in the compendium