Prismo
What Prismo is
A free desktop application for browsing, installing, updating, and organizing game mods. It supports about 200 games out of the box and brings Thunderstore and CurseForge browsing together. Users can create and switch between mod profiles for each game, and share a profile with friends through a code or link. Optional cloud sync uses Discord sign-in to sync profiles across devices.
Zephyr also includes an Archipelago multiworld randomizer with a bundled Python runtime, a configuration editor, gamepad navigation, and seven languages. It runs on Linux, macOS, and Windows. Downloads include Windows .exe, Linux AppImage and .deb, and macOS .dmg installers. Zephyr is licensed under GPL-3.0, with its source code available on GitHub. Without signing in, profiles, configuration files, and preferences stay on the device, while public mod metadata is fetched through anonymous requests. If cloud sync is enabled, profile archives and metadata are stored with Prismo Studios' hosting provider in France. The privacy policy says app-to-backend communications use HTTPS and refresh tokens are hashed before database storage.
Who it suits
Zephyr suits players who want to manage mods for a range of games from one desktop app, especially those using Thunderstore or CurseForge. Its profiles, sharing options, and optional cloud sync can help players keep or share game-specific setups across devices.
What it does well
- Supports about 200 games out of the box.
- Combines browsing from Thunderstore and CurseForge.
- Creates, switches, and shares game-specific mod profiles.
- Includes an Archipelago randomizer with bundled Python runtime.
- Available for Linux, macOS, and Windows.
- GPL-3.0 licensed with source code on GitHub.
What to know first
- Cloud sync is optional and uses Discord sign-in.
- Cloud profile archives and metadata are stored with a hosting provider in France.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Zephyr (free) | Free, open source | Free |
As prismo-studios.dev lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Prismo website.
- Download the installer for Windows, Linux, or macOS.
- Install Zephyr using the downloaded .exe, AppImage, .deb, or .dmg.
- Browse Thunderstore or CurseForge and organize mods into game profiles.
- Optionally sign in with Discord to sync profiles across devices.
Verdict
Choose Zephyr if you want a free, open-source mod manager with broad game support, profiles, and mod source browsing in one app.
Questions
Is Zephyr free?
Yes. The listed Zephyr plan is free, at no cost.
Which operating systems does it support?
Zephyr is available for Linux, macOS, and Windows.
Is Zephyr open source?
Yes. It is licensed under GPL-3.0, and its source code is available on GitHub.
Which mod sources can I browse?
Zephyr lets users browse Thunderstore and CurseForge in one place.
Is cloud sync required?
No. Cloud sync is optional. Without signing in, profiles, configuration files, and preferences stay on the device.
Facts from Prismo's own pages
- Automatic updates
- Yes · prismo-studios.dev, 22 Sept 2026
- Cloud data
- When users opt in to cloud sync, profile archives and metadata are stored on Prismo Studios' hosting provider in France. · zephyr.prismo-studios.dev, 8 Oct 2026
- Cloud sync
- Optional cloud sync lets users sign in with Discord and sync mod profiles across devices. · zephyr.prismo-studios.dev, 8 Oct 2026
- Deployment method
- copy · prismo-studios.dev, 22 Sept 2026
- Downloads
- The repository lists Windows .exe, Linux AppImage and .deb, and macOS .dmg installers. · github.com, 8 Oct 2026
- Free plan
- Yes · prismo-studios.dev, 22 Sept 2026
- Game support
- Zephyr supports about 200 games out of the box. · docs.zephyr.prismo-studios.dev, 8 Oct 2026
- Mod profiles
- Yes · prismo-studios.dev, 22 Sept 2026
- Mod source access
- built-in · prismo-studios.dev, 22 Sept 2026
- Mod sources
- Zephyr lets users browse Thunderstore and CurseForge in one place. · zephyr.prismo-studios.dev, 8 Oct 2026
- Open source
- Zephyr is licensed under GPL-3.0 and its source code is available on GitHub. · github.com, 8 Oct 2026
- Other features
- Zephyr includes a config editor, gamepad navigation, and seven languages. · github.com, 8 Oct 2026
- Privacy
- Without signing in, profiles, configuration files, and preferences stay on the device, while public mod metadata is fetched using anonymous requests. · zephyr.prismo-studios.dev, 8 Oct 2026
- Profiles
- Users can create and switch between mod profiles for each game. · github.com, 8 Oct 2026
- Profile sharing
- Users can share a profile with a code or link so friends can use the same mod setup. · zephyr.prismo-studios.dev, 8 Oct 2026
- Purpose
- Zephyr is a desktop mod manager for browsing, installing, updating, and organizing game mods. · docs.zephyr.prismo-studios.dev, 8 Oct 2026
- Randomizer
- The app includes an Archipelago multiworld randomizer with a bundled Python runtime. · github.com, 8 Oct 2026
- Security
- The privacy policy says app-to-backend communications use HTTPS and refresh tokens are hashed before database storage. · zephyr.prismo-studios.dev, 8 Oct 2026
- Support
- The documentation directs users to Discord for documentation issues and GitHub Issues for app bugs. · docs.zephyr.prismo-studios.dev, 8 Oct 2026
- Supported platforms
- multi-platform · prismo-studios.dev, 22 Sept 2026
Where Prismo stands on Freedom251
- Mod managers#11 of 78
- Game Mod Managers#12 of 79