AudioLoader for Millennium

A Millennium plugin that replaces Steam interface sounds with Audio Loader-compatible sound packs.

Features

• Discovers sound packs from Steam's steamui/sounds_custom directory.
• Supports existing Decky Audio Loader packs.
• Supports ignore lists, filename mappings, and randomized mappings.
• Includes default and per-sound UI volume controls.
• Prewarms common UI sounds so first-use clicks are less likely to miss audio.
• Automatically selects a pack when only one is installed.

Sound Packs

Place each pack in:

Steam\steamui\sounds_custom\<pack-folder>\

Each folder must contain a pack.json. Packs with music: false, ignore, and mappings fields are supported.

Development

pnpm install
pnpm run build

Compiled files are written to .millennium/Dist.

Releases

GitHub Actions builds a deployable ZIP for every push and pull request. Pushing a v* tag creates a GitHub Release and attaches the ZIP automatically.