The GMDeck
Master Your World
The all-in-one toolkit for Dungeon Masters. Build worlds, plan campaigns, run sessions — everything you need to bring your stories to life.
Everything a DM Needs
Purpose-built tools for world-building, campaign management, and live session running.
World Building
Create richly detailed worlds with interconnected entities — characters, locations, factions, items, lore, and more.
Campaign Management
Organise multi-world campaigns, track player rosters, and plan your narrative arc across sessions.
Session Planning
Prepare sessions with location and plotline pickers, rich text notes, and a dedicated three-column runner for live play.
Maps & Pins
Upload world maps, place interactive pins linked to locations, and browse maps across all your worlds in one gallery.
Timelines
Chronicle your world's history with categorised timeline entries linked to entities and filterable by era or theme.
Roll Tables
Build random tables for encounters, loot, weather, and more — complete with animated dice rolls and auto-fill ranges.
Hero artwork coming soon — this space will showcase the platform in action
Ready to Begin Your Adventure?
Create your free account and start building your world today.
Create Account