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Welcome to ZZAR

ZZAR (Zenless Zone Zero Audio Replacer) is a powerful desktop application that lets you replace any sound in Zenless Zone Zero with your own audio. Whether you’re installing mods created by others or building your own custom audio replacements, ZZAR makes it easy.

Mod Manager

Install, enable, and manage audio mods with automatic conflict resolution

Audio Browser

Browse, preview, and replace every sound in the game

Mod Creator

Build custom .zzar mod packages or convert existing mods

Audio Converter

Convert between MP3, WAV, WEM, and other audio formats

GameBanana Browser

Browse and download mods directly from GameBanana

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What can you do with ZZAR?

ZZAR serves two primary purposes:

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For mod users

Installing mods is as simple as clicking Install, selecting your .zzar mod file, and enabling it. ZZAR handles:
  • Automatic conflict detection when multiple mods modify the same sound
  • Load order management
  • Easy enable/disable toggles
  • Version tracking and updates

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For mod creators

Creating mods requires no command line knowledge. Just:
  1. Pick the sound you want to change in the Audio Browser
  2. Select your replacement audio file or mute it
  3. Export as a .zzar package
ZZAR handles all the format conversion, file structure, and packaging automatically.

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Key features

Works on both Windows and Linux. On Linux, ZZAR uses Wine to run the Wwise audio encoder.
Convert between MP3, WAV, WEM, FLAC, OGG, and more. ZZAR integrates with FFmpeg, vgmstream, and Wwise Console to handle all conversions.
Use acoustic fingerprinting to find matching sounds across the game’s audio files, making it easy to replace all variations of a sound.
Download the official tag database to search for sounds by name instead of numeric IDs. Community-contributed tags help identify character voice lines, sound effects, and music.
Import non-ZZAR mods (loose WEM files or built PCK files) and convert them to the .zzar format for easy distribution and installation.
ZZAR automatically checks for updates and can update itself when new versions are released.

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How it works

Zenless Zone Zero stores its audio inside .pck archive files. The sounds the game actually plays are .wem files nested inside .bnk SoundBank files, which are in turn stored inside those .pck archives: 
SoundBank_SFX_1.pck
└── 428903628.bnk
    ├── 134133939.wem    ← this is what the game plays
    ├── 18063035.wem
    └── ...
ZZAR knows how to:
  1. Extract individual sounds from these nested archives
  2. Convert your audio files to the WEM format the game expects
  3. Replace specific sounds in the BNK files
  4. Repack everything into PCK files the game can load
The game also has Streamed_SFX_*.pck files that contain the same sound IDs, but the game doesn’t always use those. ZZAR targets the correct SoundBank files so your mods actually work.

Installation

Get ZZAR installed on your system

Quick start

Install your first mod in 5 minutes

Creating mods

Learn how to build your own mods

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Need help?

ZZAR is a fan-made tool and is not affiliated with HoYoverse. Use at your own risk.

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