MITHOS: Game Master's TTRPG Toolkit

MITHOS is a modular, system-agnostic digital toolkit designed to stay out of your way so you can focus on what's important: Telling stories with your friends.

Built by a DM for DMs, MITHOS replaces the cluttered experience of running games through multiple browser tabs and cloud-dependent subscriptions with a light-weight, locally-stored dashboard.

Total Creative Freedom

Unlike platforms that lock you into specific rulesets, MITHOS is built to be system-agnostic. Whether you’re running high-fantasy, sci-fi, or a gritty homebrew survival horror, the toolkit adapts to your workflow; not the other way around.

"Infinite" Canvas

Stop digging through nested menus. MITHOS utilizes a free-panning, scrollable workspace that mimics a physical table. Spread out your NPC portraits, maps, and trackers exactly where you need them and see your entire session at a glance.

Key Features:

• No Subscriptions: Buy it once, own it forever. Privacy is a right, and your data stays on your machine.
• 100% Offline Reliability: No internet required. Your tools are always accessible, ensuring your game is never interrupted by outages or paywalls.
• Zero-Tab Integration: View and update your notes from Obsidian, OneNote, or Notion directly within the dashboard. Stop "Alt-Tabbing" and keep the immersion alive.
• Player-Facing Screens: Manage the behind-the-screen stuff on your device while projecting a clean map or combat tracker for players on a second display or digital TV table.
• Character Sheet Builder: Create a sheet for your system, and use those sheets across your campaigns.
• Modular Tools: Includes a Party Tracker, Combat Tracker, NPC Generator, NPC Library, Bestiary, Session Notes Viewer (markdown viewer/editor compatible with Obsidian files, OneNote, Google, and Notion integrations), Shop Generator, Weather Tool, Custom Calendar, Timekeeper, Map Display, Session Recorder, Sticky Notes, Dice Roller, Custom Layouts, Multiple Campaign Support, and more...