Thank you!
Ido
Creator of
Recent community posts

Hello!
For everyone that plays Pathfinder 2e, this is a tool for you! Or at least the beginning of a tool.
I’ve been building Game Master App, a Windows prototype made to help Game Masters prepare campaigns, create creatures, organize notes, import Foundry VTT character data, and experiment with encounter simulations.
Current features include:
- Campaign notes with formatting, images, and linked notes
- PF2e creature builder with editable creature sheets
- Searchable monster abilities and spells
- Foundry VTT creature import/export support
- Character import from Foundry
- Encounter testing with combat logs and a live tactical map
- Map grids, walls, token placement, movement, cover, and conditions
- Experimental AI behavior for creatures and characters
This is still an early prototype, especially the encounter simulator. There will be bugs, missing rules interactions, and occasionally strange AI behavior. I’m sharing it because I’d really appreciate feedback from people who play and run PF2e.

You can download the prototype here:
https://idoz53.itch.io/game-master-app
If you test it, I’d love to know:
- What works well
- What feels confusing or awkward
- Bugs or errors you find
- Rules interactions that are handled incorrectly
- Features you would want most as a GM
The prototype is free, local on your pc, and has no accounts, advertising, or telemetry.
Thank you to anyone who gives it a try!
