Zephyr

A modern mod manager for all your games.

by Prismo Studios

Read the Documentation

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Screenshots

Dashboard

Pick your game, see your profiles and stats at a glance.

Browse

Search and install mods from Thunderstore and CurseForge in one place. Each mod shows a source badge so you always know where it comes from.

Mods

Manage your installed mods with drag-and-drop reordering, batch actions, and detailed mod info with readme and changelogs.

Config Editor

Edit BepInEx plugin configs directly from the app without digging through files.

Randomizer

Built-in Archipelago multiworld randomizer with Python runtime bundled. Generate seeds, host local or remote games, and manage player slots without touching the command line.

Features

• Multi-game support -- 198+ games from Thunderstore, including Lethal Company, R.E.P.O., and Risk of Rain 2
• Thunderstore integration -- Browse, install, and update mods directly from Thunderstore
• Zephyr Mods registry -- Curated community mods with SHA-256 verified GitHub Releases. Anyone can submit
• Profile management -- Create and switch between mod profiles for each game
• Config editor -- Edit mod configuration files with a built-in, structured editor
• Custom themes -- 4 built-in themes with full CSS custom property support
• Multi-language support -- Available in 7 languages
• Fast Rust backend -- Native performance powered by Tauri 2 and Rust

Publish your mod

You wrote a mod for a game Zephyr supports? You can publish it to the Zephyr Mods registry and have it appear in Zephyr's Browse page for everyone, no Thunderstore account needed.

The registry is a plain GitHub repo with a CLI wizard. You point it at your mod's GitHub release, it computes the SHA-256, opens a PR, CI verifies ownership, and once merged Zephyr picks it up. See the zephyr-mods README for the full guide.

Write a plugin

Zephyr ships with a community plugin system. Plugins live in a separate repo, Zephyr-plugin, and come in four flavors:

• Themes: a single CSS file that restyles Zephyr.
• Features: full Svelte mini-apps that get their own sidebar item, run in a sandboxed iframe, and talk to Zephyr through a postMessage bridge (screen capture, file storage, notifications, …).
• Games: declarative game definitions Zephyr can target.
• Mods: entries for the Zephyr Mods registry (see above).

A shared SDK (@zephyr-plugin/sdk) gives plugin authors Svelte components styled like Zephyr, design tokens, and a typed bridge client, so a new feature plugin feels native without anyone touching the Zephyr binary.

Quickstart:

git clone https://github.com/Prismo-Studio/Zephyr-plugin.git
cd Zephyr-plugin
pnpm install
pnpm new-plugin               # interactive wizard

Then open Plugins → Dev Mode → Load plugin in Zephyr and pick your folder. Edits hot-reload.

Full docs: Zephyr-plugin README · Plugin authoring guide on the wiki.

Quick Start

Download

Head to the Releases page and grab the latest installer for your platform:

• Windows -- .exe (NSIS installer)
• Linux -- AppImage, .deb
• macOS -- .dmg

Note: On Windows, you may see a SmartScreen prompt. Click "More Info" then "Run Anyway" to proceed.

Build from Source

Prerequisites

• Rust (stable toolchain)
• Node.js 18+
• pnpm

Commands

git clone https://github.com/prismo-studio/zephyr.git
cd zephyr
pnpm install
pnpm tauri dev

To create a production build:

pnpm tauri build

Tech Stack

Layer	Technology
Framework	Tauri 2
Frontend	Svelte 5
Backend	Rust
Styling	CSS Custom Properties

License

This project is licensed under GPL-3.0.

Material icons are licensed under Apache 2.0.

Credits

Built and maintained by Prismo Studios.