GrimDM
A downloadable game
GrimDM: The Ultimate Dungeon Master's Arsenal
Revolutionize Your Tabletop RPG ExperienceGrimDM is a comprehensive, professional-grade application designed specifically for Dungeon Masters who demand excellence in their gaming sessions. Built with modern web technologies and packaged as a powerful Electron application, GrimDM transforms the way you prepare, run, and manage your tabletop RPG campaigns.
��️ Interactive Map Creation & Management
Dynamic Battlemap System
- Drag-and-Drop Interface: Intuitive placement of hundreds of meticulously crafted fantasy icons
- Extensive Icon Library: Over 200+ high-quality SVG icons across multiple categories:
- Combat & Weapons: Swords, axes, magical weapons, legendary artifacts
- Settlements & Structures: Castles, towers, villages, dungeons, temples
- Resources & Treasures: Gems, crystals, mines, magical items
- Characters & Creatures: Warriors, monsters, undead, magical beings
- Real-time Editing: Make changes during sessions without interrupting gameplay
- Layer Management: Organize your maps with multiple layers for terrain, objects, and characters
Professional Map Features
- Grid System: Customizable grid overlays for precise positioning
- Zoom & Pan: Smooth navigation through large, detailed maps
- Export Capabilities: Save maps as images for sharing or printing
- Template Library: Pre-built map templates for common scenarios
🌐 Seamless Multiplayer Integration
WebRTC-Powered Real-time Collaboration
- Peer-to-Peer Architecture: Direct connections between DM and players for low-latency interaction
- Local Hosting: DM acts as the game server, ensuring privacy and control
- Automatic Signaling: Built-in signaling server handles connection establishment
- Cross-Platform Compatibility: Works on Windows, Mac, and Linux
Multiplayer Features
- Live Map Updates: Changes appear instantly for all connected players
- Player Permissions: Control what players can see and interact with
- Session Management: Easy join/leave functionality with session codes
- Voice Chat Ready: Integrates with external voice chat applications
📊 Comprehensive Session Management
Campaign Organization
- Save/Load System: Persistent storage for campaigns, maps, and settings
- Character Tracking: Manage player characters, NPCs, and monster stats
- Session History: Keep detailed logs of encounters and story progression
- Resource Management: Track spell slots, hit points, and inventory
Advanced DM Tools
- Initiative Tracker: Automated turn management for combat encounters
- Spell Database: Quick reference for spells, abilities, and effects
- Random Generators: Built-in tools for encounters, loot, and world-building
- Note System: Integrated notepad for session planning and improvisation
🎨 Modern, Intuitive Interface
User Experience Design
- Dark/Light Themes: Choose your preferred visual style
- Responsive Layout: Adapts to different screen sizes and resolutions
- Keyboard Shortcuts: Power-user features for efficient workflow
- Customizable Toolbars: Arrange tools and features to match your workflow
Accessibility Features
- High Contrast Mode: Enhanced visibility for all users
- Keyboard Navigation: Full functionality without mouse dependency
- Screen Reader Support: Compatible with assistive technologies
- Scalable Interface: Adjust text and icon sizes as needed
🔧 Technical Excellence
Performance & Reliability
- Offline-First Design: Works without internet connection for local gaming
- Fast Loading: Optimized asset management for quick startup
- Memory Efficient: Smart resource management for long gaming sessions
- Auto-Save: Automatic backup of your work to prevent data loss
Security & Privacy
- Local Data Storage: All campaign data stays on your computer
- No Cloud Dependencies: Complete control over your gaming content
- Secure Connections: Encrypted peer-to-peer communication
- Privacy-First: No data collection or tracking
🎯 Perfect For Every DM
New DMs
- Guided Workflow: Step-by-step tools for campaign creation
- Tutorial System: Built-in help and best practices
- Template Library: Pre-built scenarios to get started quickly
- Community Resources: Access to shared content and advice
Experienced DMs
- Advanced Features: Deep customization and automation options
- Professional Tools: Enterprise-level map creation and management
- Integration Ready: Works with existing tools and workflows
- Scalability: Handle complex campaigns with multiple groups
Professional DMs
- Commercial Use: Licensed for professional DM services
- Branding Options: Customize the interface for your brand
- Multi-Session Management: Handle multiple groups simultaneously
- Analytics: Track session metrics and player engagement
🚀 Getting Started
Quick Setup
- Install: Download and install GrimDM on your preferred platform
- Create: Start a new campaign or load an existing one
- Design: Build your maps using the extensive icon library
- Host: Start a session and share the connection code with players
- Play: Run your session with real-time collaboration
System Requirements
- Windows 10+, macOS 10.14+, or Linux (Ubuntu 18.04+)
- 4GB RAM minimum, 8GB recommended
- 2GB available disk space
- Network connection for multiplayer features
🎮 Compatible With
Tabletop RPG Systems
- Dungeons & Dragons (5e, 3.5e, 4e)
- Pathfinder (1e, 2e)
- Call of Cthulhu
- Savage Worlds
- And any other system that uses maps and tokens
Gaming Styles
- Theater of the Mind with visual aids
- Tactical grid-based combat
- Exploration-focused campaigns
- Social interaction heavy sessions
- Mixed approach gaming
🔮 Future Roadmap
Planned Features
- 3D Map Support: Elevation and vertical combat
- Dynamic Lighting: Realistic lighting and vision systems
- Sound Integration: Ambient audio and sound effects
- Mobile Companion App: Player interface for phones and tablets
- Cloud Sync: Optional cloud storage for campaign sharing
- AI Dungeon Master: AI-assisted campaign generation and management
Community Features
- Marketplace: Share and sell custom content
- Modding Support: Create custom icons and tools
- Plugin System: Extend functionality with third-party add-ons
- Tournament Support: Organized play and competitive features
| Status | Released |
| Author | Gravemind Studio |
| Genre | Role Playing, Simulation, Visual Novel |
| Tags | 2D, Character Customization, Dungeons & Dragons, Local multiplayer, Multiplayer, storygame, Tactical RPG |
| Average session | Days or more |
| Languages | English |
| Inputs | Keyboard, Mouse |
| Multiplayer | Local multiplayer |
| Player count | 1 - 8 |
| Content | No generative AI was used |
Purchase
In order to download this game you must purchase it at or above the minimum price of $7 USD. You will get access to the following files:





