Deraku's Mirror — D&D AI Assistant

Mirror is a Dungeons & Dragons assistant for players and Dungeon Masters who want a thinking partner at the table — not a dice-roll toy. It builds campaigns, designs encounters, writes monsters, generates NPCs with motives and voices, and can hold a thread of lore across an entire session.

Every answer is produced by a fine-tuned Qwen 2.5 14B model running on our self-hosted inference server. The app pulls your party, NPCs, spells, monsters, and homebrew into context on the fly, so it actually remembers who Grimwald the Half-Orc is and why the bard has it out for him.

What's inside

• Party, NPC, monster, spell, equipment, and table libraries that feed the chat with real context
• Campaign threads so long arcs and plot twists stay consistent session to session
• Encounter and balance helpers tuned for 5e CR math
• Homebrew support — drop in custom rules, items, or subclasses and Mirror treats them as canon
• Handouts and library pages for anything you want to save and share at the table

This APK is a Trusted Web Activity wrapper around the full Mirror web app. You get native launch, splash screen, and full-screen play without the browser chrome. Free to download and install.