AI-Powered Campaign Editor
Everything You Need for Epic Campaigns
Codex Arcana combines powerful writing tools with AI assistance to help you create unforgettable D&D experiences.
AI Content Generation
Generate NPCs, combat encounters, and narrative content with advanced AI models including OpenAI, Claude, and Gemini.
Advanced Markdown Editor
Write with live preview, syntax highlighting, and powerful formatting tools designed specifically for your campaigns.
Works Offline
Your campaigns are always accessible. Internet access is only required for login and model usage.
Wiki-Style Linking
Connect your documents with [[wiki-style]] links. Build interconnected campaigns with easy navigation between documents.
Campaign Organization
Organize your content with folders, tags, and powerful search. Keep all your campaign materials in one place.
Multi-Platform
Available on Windows, macOS, and Linux. Your campaigns go wherever you go, on any device.
See Codex Arcana in Action
A powerful editor designed for Dungeon Masters. Create, organize, and enhance your campaigns with AI-powered tools.
Intuitive Interface
Clean, distraction-free writing environment with everything you need at your fingertips.
Document Organization
Organize campaigns with folders, tags, and powerful search capabilities.
Instant AI Generation
Generate content with a simple @ command directly in your documents.
Simple, One-Time Pricing
No subscriptions, no hidden fees. Just one payment for lifetime access.
Codex Arcana
Regular price: $29.99
- Advanced markdown editor with live preview
- AI generation command palette
- Document management with local persistence
- Wiki-style document linking
- Updates for the lifetime of the product
- Windows, macOS, and Linux support
Frequently Asked Questions
Do I need an internet connection?
Yes, but only to login and model usage.
What AI models are supported?
We support OpenAI , Claude , and Google Gemini. You provide your own API keys for the AI features. If we are missing a model provider, please let us know.
Can I install on multiple devices?
Yes! Your license allows installation on up to 3 devices for personal use.