WiseOwl.Casc 0.8.0

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package WiseOwl.Casc --version 0.8.0
                    


                    

                
NuGet\Install-Package WiseOwl.Casc -Version 0.8.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="WiseOwl.Casc" Version="0.8.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="WiseOwl.Casc" Version="0.8.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="WiseOwl.Casc" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add WiseOwl.Casc --version 0.8.0
                    


                    

                
#r "nuget: WiseOwl.Casc, 0.8.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package WiseOwl.Casc@0.8.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=WiseOwl.Casc&version=0.8.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=WiseOwl.Casc&version=0.8.0
                    


                            Install as a Cake Tool

WiseOwl.Casc

A modern .NET library for Blizzard's CASC content-storage stack — the game-agnostic transport: CASC / TACT / TVFS / BLTE.

Unofficial. Not affiliated with or endorsed by Blizzard Entertainment. World of Warcraft, Diablo, and related marks are trademarks of Blizzard Entertainment, Inc. Use only with your own legally-obtained game files.

What it does

Opens a local Blizzard installation and resolves content by path or by content/encoding key — .build.info → build config → local .idx index → archive envelope → BLTE decode → encoding table → the TVFS path tree. Modern API: typed ContentKey / EncodingKey value types, async reads, spans, net8.0;net10.0.

using WiseOwl.Casc;

using var casc = CascStorage.OpenLocal(@"D:\Diablo IV");
Console.WriteLine(casc.Build.Version);
byte[] bytes = casc.ReadPath(@"Base\CoreTOC.dat");   // path → BLTE bytes

For Diablo IV (CoreTOC, SNO records, textures, localized strings) add the companion package WiseOwl.Casc.Diablo4, which builds on this.

Documentation

  • Byte-format spec: docs/casc-format.md
  • API reference & dev logs in the repository.

MIT licensed. See LICENSE, NOTICE, and THIRD-PARTY.md for credits to the reverse-engineering community whose published format notes this implementation builds upon.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • net10.0

    • No dependencies.

  • net8.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on WiseOwl.Casc:

Package Downloads
WiseOwl.Casc.Diablo4

Diablo IV game module for WiseOwl.Casc: CoreTOC.dat, SNO read-by-id, shared-payload resolution, the 0x44CF00F5 combined-meta bundle (.tex/BCn + per-locale StringList), and typed record decoders — paragon boards/nodes/glyphs, character classes, powers/affixes/items, and the paragon UI render layout (raw fields only). Unofficial; not affiliated with or endorsed by Blizzard Entertainment. Diablo is a trademark of Blizzard Entertainment, Inc. Use only with your own legally-obtained game files.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.8.0 128 7/18/2026
0.7.0 124 7/17/2026
0.6.0 119 7/17/2026
0.5.0 128 7/16/2026
0.4.0 126 7/16/2026
0.3.0-alpha 155 5/21/2026
0.2.0-alpha 149 5/18/2026
0.1.0-alpha 140 5/17/2026

See CHANGELOG.md in the repository for the release notes.