Heroes in Darkest Dungeon II are fragile. They accumulate Stress from combat, road hazards, and negative events. High Stress can lead to Meltdowns, severely impacting their health and relationships. Conversely, positive events and combat victories can reduce Stress and foster positive relationships. Relationships between heroes are dynamic; they can develop positive (e.g., 'Confidant') or negative (e.g., 'Rival') bonds, granting powerful buffs or debilitating debuffs in combat. Manage stress at Inns and through specific combat skills.

Key Concepts:
- Stress: Accumulates from various sources, leads to Meltdowns at 10 Stress.
- Meltdown: Reduces HP, adds negative tokens, and damages relationships.
- Relationships: Positive bonds grant buffs, negative bonds inflict debuffs.
- Inn: Primary location for stress relief and relationship building.