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AI RPG Engine Handbook

A guide to building simulation-driven terminal RPGs.


  1. What AI RPG Engine Is
  2. Engine Philosophy
  3. Quick Start
  1. The Simulation Core
  2. The Event System
  3. Modules
  4. Rulesets
  1. AI Cognition
  2. Perception Layers
  3. Environment Simulation
  4. Progression System
  5. Narrative Authority
  1. Content Files
  2. Rooms and Zones
  3. Entities
  4. Dialogue Trees
  5. Items and Status Effects
  1. Writing a Module
  2. Testing Modules
  1. The Chapel Threshold (Fantasy Demo)
  2. Neon Lockbox (Cyberpunk Demo)
  1. Save Files
  2. Deterministic Replay
  3. Observability
  1. Planned Systems
  2. AI-Assisted Worldbuilding

AI RPG Engine is built to support simulation-driven storytelling, reactive worlds, modular design, and terminal-native games.

The engine does not tell you what kind of world to build. It gives you the systems to build one that behaves.

Experiment. Break things. Build something that surprises you.