Grimory - RPG System Designer
A downloadable tool for Windows, macOS, and Linux
Grimory is an offline desktop tool for building, organizing, and managing RPG systems from scratch — without writing a single line of code.
It's designed for solo developers, game designers, and tabletop RPG creators who want full control over their game logic and structure, with a clean interface and exportable data formats.
Core Features
- Attribute System: Create primary and derived attributes with custom formulas
- Leveling & XP: Define XP curves and leveling systems for your game
- Races & Classes: Build reusable templates and design synergy rules
- Items & Skills: Create items, skills, and full crafting recipes
- Bestiary: Build monsters, define their stats, behaviors, and drops
- Status Effects: Manage buffs, debuffs, and conditional effects
- Loot Tables: Set up dynamic loot systems for drops and rewards
- Build Simulator: Test and compare character builds in real time
- Internal Wiki: Write docs, descriptions, and organize your content pages
- Data Export: Export your entire project to JSON or PDF
- UI Themes & Language: Customize the interface visuals with your custom image backgrounds and language
Included in the Download
- Standalone desktop build for Windows (.zip)
- All features unlocked — no online dependencies or hidden limitations
- Access to future updates
Grimory is not a game engine — it's a design toolkit for worldbuilding, systems thinking, and RPG balancing. Whether you're creating a digital RPG or a tabletop system, Grimory helps structure your ideas into a clear, usable database.
Development Roadmap
Rich Text Editor for Wikis- Maps Panel
- Quest Panel
- More Languages translations
Community Suggestions
- Folders for Organizations with custom tags
We value your input to improve Grimory. Share your ideas for new features and enhancements to help shape the future of the app.
Purchase
In order to download this tool you must purchase it at or above the minimum price of $8.99 USD. You will get access to the following files:
Development log
- Grimory Update – Bug Fixes and ImprovementsJul 24, 2025
- Lançamento do Grimory: RPG System DesignerJul 22, 2025
Comments
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I'm thinking about buying this. Are you able to load your own pictures of characters/items etc?
Yes! Absolutely.
The Grimory fully supports custom images. You can load your own pictures for character portraits, item icons, and more to customize your system.
Sold! Thanks for the quick reply! :)
It would be awesome if you included dice probabilities. Just purchased this, can't wait to try it for my upcoming project!
That's a great suggestion! I was actually already planning on adding dice probabilities in an upcoming update. Thanks for the purchase and the feedback!
hi, It's a great program for me, but there seem to be some issues.
Nothing happened when I clicked the 'Add New Formula' button.
another problem is : if I use this formula "100 * (level ^ 1.5 + level)" to calculate the XP, it seems like to return incorrect values.
Thanks a lot for the feedback! I'm already working on fixing the 'Add New Formula' button issue. I also found a problem with how custom formulas like yours are being parsed, and I'm correcting it as well. An update will be available very soon!