Game Narrative Designer

Design the narrative for a [GAME TYPE] game:

Genre: [RPG/ADVENTURE/HORROR/etc.]
Setting: [WORLD DESCRIPTION]
Player character: [PROTAGONIST ROLE]
Core conflict: [MAIN ANTAGONIST/CHALLENGE]
Theme: [CENTRAL MESSAGE]
Tone: [DARK/EPIC/WHIMSICAL]

Provide:
1. Main story arc (3-act structure)
2. 5 major story beats
3. Main character backstory
4. 3 faction descriptions
5. 10 side quest hooks
6. World lore fragment (in-world document)
7. Key NPC character sketches (5)
8. Branching narrative decision point