Name
Type
Size
GUID
Version
Name Group Size Format Channels Sample Rate Bit Depth Bit Rate Audio
Type Package Name Parent Size
Name

Meshes

# Name Class Size

Animation Sequences

# Name Group Start Frame Total Frames Rate

Import

# Object Name Package Name Class Name Class Package Name

Export

# Object Name Class Parent Package File Offset Size

This page has been made to demonstrate the features of UTPackage.js, a file reader written in JavaScript which can read data from Unreal Tournament packages (as well as several other Unreal Engine 1 games).

This page would not have been possible without the following FOSS projects:

  • DataTables - displays various tables (Sounds, Scripts, Import/Export Objects, etc.)

  • three.js - renders meshes, brushes, and map previews

  • WebXmp - tracker music file playback

  • JSMpeg - MP2 audio playback

  • vgmstream - XA audio decoding algorithm

  • highlight.js - syntax highlighting for Scripts tab

  • jQuery - misc. page functionality

My GitHub: https://github.com/sapphire-bt

BunnyTrack.net GitHub: https://github.com/bunnytrack

Made by Sapphire ❤️

Last updated: 19th August 2026

Drag file anywhere to begin