The Hauntline Card System turns printed cards into physical game pieces for AI-powered horror investigations. Cards can be collected, carried, scanned, typed by code, held for later use, discarded after use, or stored inside the player’s case file.

Instead of needing physical props for every item, clue, key, or event, players can use cards. A bell card becomes the bell. A key card becomes the key. A burden card becomes an active problem. A Safe Return card becomes a way to pause the horror and step back into safety.

How The Cards Work

Card Types

The Raven Key card set uses several card types to control physical and digital play.

Entry Cards — start or anchor the investigation.

Clue Cards — store evidence inside the Journal / Case File.

Item Cards — enter the Inventory Ring and can be used during scenes.

Route Cards — open, change, or test movement through the Tower.

Danger Cards — stay active until the threat is resolved.

Finale Cards — trigger the final confrontation.

Safe Cards — pause the game or return the player to a safe point.

Physical Inventory Ring

The Inventory Ring is the player’s real-world card inventory. It can be a binder ring, pouch, card sleeve, journal pocket, or case-file stack.

When the GPT says an item is found, the player takes the matching card. When the item is used, spent, traded, or consumed, the player discards or archives the card. This keeps the physical table state and the GPT game state aligned.

Hauntline Haunted Locations

Explore Hauntline’s playable haunted locations. Each case is inspired by a real place, public legend, ghost-story tradition, or historic atmosphere, then adapted into a fictional interactive horror investigation. Play remotely from anywhere, or use selected scenarios as on-site assisted experiences where safe, legal, and permitted.

Quick Start Prompt (from the core engine)