# THIN AIR

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## SPOILER-FREE SYNOPSIS

You're drifting through Colorado's San Juan Mountains when you find a woman run off Highway 149 at 3 AM. Someone tried to kill her.

Her teenage daughter disappeared a week ago. The local sheriff says she's a runaway. The mother doesn't believe it.

Now someone wants the mother dead too.

Lake City, Colorado. Population 1,000. Elevation 8,671 feet. One road in. One road out. Limited cell service. Peak summer tourist season. Independence Day festival approaching.

A missing girl. A desperate mother. A corrupt system. A violent conspiracy.

You have four days to find the truth before everything explodes.

Genre: Crime/Mystery/Action Thriller

Style: Lee Child (Jack Reacher novels)

Setting: Rural Colorado mountain town, July 1-4

Tone: Grounded realism, sparse prose, tactical investigation, moral clarity

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## TECHNICAL SPECIFICATIONS

### AI Model Recommendations:

EXCELLENT:

- Claude Opus (best reasoning, mystery handling, Lee Child style)

- GPT (strong investigation, NPC consistency)

- Gemini Pro (good context, handles complexity)

GOOD:

- Claude Sonnet (cheaper, solid performance)

- GPT-4 base (reliable but older)

NOT RECOMMENDED:

- GPT-3.5 (struggles with information firewall, mystery reveals)

- Novel AI (makes own story, doesn't follow lorebook strictly)

- Local models <70B params (insufficient reasoning for mystery mechanics)

### Context Window:

- Minimum: 32K tokens (functional but tight by July 4th)

- Recommended: 64K-128K tokens (comfortable, supports full investigation + combat)

- Ideal: 200K tokens (never worry about context)

### Token Budget:

- System Prompt: ~2,200 tokens

- Constant Lorebook (5 entries): ~6,200 tokens

- Permanent Load: ~8,400 tokens

- Keyword Lorebook (0-8 active): 0-8,000 tokens

- Maximum Combined: ~16,400 tokens

- Leaves for chat: 111,600 tokens (in 128K context)

Chat length estimate: 40-60 responses before context limits (investigation typically resolves by response 30-50).

### Lorebook Structure:

- Total entries: 19 (5 constant, 14 keyword-activated)

- Activation method: Keyword-based (automatic, no manual triggering)

- Constant entries: Locations, Style Guide, Festival Schedule, Knowledge Matrix, Critical Systems

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## META-TOOLS (OUT-OF-CHARACTER COMMANDS)

{{user}} can type these commands at ANY time for assistance:

!status - Shows current investigation progress (discoveries, suspects, threats, {{user}}'s condition)

!hint - Suggests next productive steps (high-priority leads, locations to visit, NPCs to interview, tactical considerations)

!time - Displays current date/time, countdown to July 4th, festival preparation status

!clues - Lists all evidence collected (physical evidence, witness testimony, deductions made)

!suspects - Shows investigation targets ranked by priority (high/medium/witnesses/cleared)

!map - Describes current location (details, nearby areas, points of interest, navigation)

How they work:

- Type command (e.g., "!hint")

- AI responds with formatted info

- AI then continues: "[Returning to scene...]" and resumes narrative

- Info provided reflects ONLY what {{user}} has discovered (no spoilers)

- Hints point direction, don't give answers

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Estimated playtime: 8-15 hours (30-60 responses depending on investigation efficiency, combat encounters, relationship development).

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## TIPS FOR BEST EXPERIENCE

1. Take your time. Mystery rewards thorough investigation. Don't rush.

2. Use meta-tools. !hint if stuck, !status to track progress, !suspects to organize thoughts.

3. Track evidence. Keep notes on clues, witnesses, contradictions. Build your case properly.

4. Respect the firewall. Don't metagame. Your character doesn't know what you (the player) know from reading lorebook.

5. Embrace failure states. Getting arrested, injured, or losing witnesses is PART of the story. Adapt and overcome.

6. Mind the calendar. 4 days until festival. Time pressure is real. Manage efficiently.

7. Watch for Meanwhile scenes. Vague cutaways contain clues. Pay attention to patterns.

8. Environmental awareness. Altitude affects performance. Weather is dangerous. Isolation means self-reliance.

9. NPC relationships matter. How you treat people affects who helps or hinders.

10. Enjoy the prose. This is Lee Child homage. Savor the sparse, tactical style.

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## CREDITS & INSPIRATION

Style: Lee Child (Jack Reacher novel series)

Setting: Lake City, Colorado (real town, fictionalized for story)

Structure: Mystery investigation with action thriller elements

Mechanics: Information firewall, evidence-based progression, dynamic NPC relationships

Designed for: Players who enjoy methodical investigation, tactical action, grounded realism, moral clarity, sparse prose, competent protagonists.

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VERSION: 1.0

LAST UPDATED: 2025-10-26

TOTAL WORD COUNT: ~85,000 words (lorebook + prompts)

RECOMMENDED FOR: Mature audiences (16+), mystery/thriller fans, Lee Child readers