Freedom251 › Robotic Simulation Software

WolvenKit

Free plan Open source LinuxSelf-hostedWindows

What WolvenKit is

WolvenKit is a free, open-source modding tool for Cyberpunk 2077 focused on REDengine 4. It helps users browse, extract, modify and repack game files into archives, with asset tools for moving content between editable formats and game files. Its Asset Browser can inspect base-game and user-made archives and preview meshes and textures. The RTTI-based File Editor can inspect and save REDengine files, handle in-place buffer data, and convert game files to readable JSON and back. Project Explorer organizes project files and can open sources such as blend, PSD and XCF files. WolvenKit also supports Blender imports of shaded Cyberpunk meshes and listed texture and model formats; FBX is supported through conversion. It is available for Windows 10/11 64-bit and Linux, although Linux compatibility is unstable and not guaranteed. The current repository README requires the latest .NET 10.0 runtime and x64 architecture. Stable and nightly builds are distributed through GitHub releases; nightly builds may include new features with greater bug risk. A separate WolvenKit 7 project covers The Witcher 3: Wild Hunt.

Who it suits

WolvenKit is for Cyberpunk 2077 modders who need to inspect, edit, convert and package game assets. Linux users should account for the stated unstable compatibility.

What it does well

Free and open source under GPL-3.0.
Browses archives and previews meshes and textures.
Can edit REDengine files and convert them to JSON.
Supports Blender imports of shaded Cyberpunk meshes.
Stable and nightly builds are available through GitHub releases.

What to know first

Linux compatibility is unstable and not guaranteed.
Requires the latest .NET 10.0 runtime and x64 architecture.
Nightly builds carry an increased risk of bugs.

Limits

The free WolvenKit plan is provided at no cost for research and educational use. Linux compatibility is unstable and not guaranteed.

Plans

Plan	Billed and limits	Price
WolvenKit	provided at no cost · GPL-3.0 open source · research and educational use	Free
Free	free of charge · Cyberpunk 2077 and The Witcher 3 modding tools · optional Patreon support	Free

As github.com lists them, read 1 Oct 2026. The maker's own page has the final word.

Getting started

Open the WolvenKit GitHub repository
Check that your environment has x64 architecture and the latest .NET 10.0 runtime
Download a stable or nightly build from GitHub Releases
Choose the installer or portable ZIP archive
Use the Getting Started guides or wiki for help

Verdict

WolvenKit offers a broad set of tools for working with Cyberpunk 2077 assets and archives at no cost. Check its runtime requirement and Linux caveat before setting up a workflow.

Questions

Does WolvenKit cost anything?

The WolvenKit plan costs nothing and is described as provided at no cost.

Is WolvenKit open source?

Yes. It is open source under the GPL-3.0 license.

Which game does WolvenKit support?

The repository focuses on REDengine 4 for Cyberpunk 2077. A separate WolvenKit 7 project covers The Witcher 3: Wild Hunt.

Which operating systems does it support?

The download guide lists Windows 10/11 64-bit and Linux. Linux compatibility is unstable and not guaranteed.

What does WolvenKit require?

The current repository README requires the latest .NET 10.0 runtime and an x64 architecture.

Where can I get WolvenKit?

Stable and nightly builds are distributed through GitHub releases, with a portable ZIP archive and an installer option.

Facts from WolvenKit's own pages

Archive browsing: The Asset Browser searches base-game and user archives directly without requiring a full game dump. · wiki.redmodding.org, 15 Oct 2026
Asset conversion: It provides bespoke import and export tools for converting assets to game files and vice versa. · wiki.redmodding.org, 1 Oct 2026
Asset I/O: Its bespoke import and export tools convert game assets to common formats and back. · wiki.redmodding.org, 15 Oct 2026
Asset previews: The Asset Browser provides immediate previews for assets such as meshes and textures. · wiki.redmodding.org, 15 Oct 2026
Blender integration: WolvenKit supports one-click Blender imports for fully shaded Cyberpunk meshes using the Multilayered material shader. · wiki.redmodding.org, 15 Oct 2026
Build pipeline: Workflows support browsing, extracting, modifying, and repacking REDengine assets into archives. · wiki.redmodding.org, 15 Oct 2026
Build workflow: WolvenKit can browse, extract, modify, and repack game files into archives for use in the game. · wiki.redmodding.org, 1 Oct 2026
CLI: A separate WolvenKit.Console package provides a command-line interface used by other applications, although the documentation calls it increasingly obsolete. · wiki.redmodding.org, 15 Oct 2026
Command line tool: The WolvenKit Console package is a separate CLI formerly known as CP2077Tools and is described as increasingly obsolete. · wiki.redmodding.org, 1 Oct 2026
Company event: A 2021 academic account states that CD Projekt Red hired the creators of WolvenKit and that their studio Yigsoft became part of CD Projekt while remaining operationally separate. · mediarep.org, 15 Oct 2026
Developer documentation: The public developer documentation covers contributing procedures and high-level code guidance but identifies itself as an early work in progress. · wolvenkit.github.io, 15 Oct 2026
Developer language: The application is primarily written in C# and its graphical interface uses WPF. · wiki.redmodding.org, 15 Oct 2026
Distribution: Stable and nightly builds are distributed through GitHub releases, with portable ZIP archives and an installer option. · wiki.redmodding.org, 1 Oct 2026
File editor: The RTTI-based File Editor can inspect, edit, save, and convert REDengine files to and from JSON. · wiki.redmodding.org, 15 Oct 2026
Funding model: RED Modding Tools says its software is free and accepts optional Patreon contributions; its Patreon page showed $11.99 per month and 34 members when opened. · patreon.com, 15 Oct 2026
Game coverage: The project supports Cyberpunk 2077 and The Witcher 3: Wild Hunt, with current development centered on REDengine 4. · wiki.redmodding.org, 15 Oct 2026
Game focus: The repository focuses on REDengine 4 for Cyberpunk 2077; a separate WolvenKit 7 project covers The Witcher 3: Wild Hunt. · github.com, 1 Oct 2026
Installation model: The normal distribution is portable: users extract a ZIP and run WolvenKit.exe, while an installer package is also offered. · wiki.redmodding.org, 15 Oct 2026
Latest notable release: Release 9.1.0 dated October 10, 2026 added editor descriptions, workspot-node expansion, changelog display in update prompts, and confirmation before major-version auto-updates. · git.mitgai.net, 15 Oct 2026
License: The source code is open source under the GPL-3.0 license. · github.com, 15 Oct 2026
Limit: installer: The documentation reported installer issues as of December 2024 and recommends the portable ZIP as the default. · wiki.redmodding.org, 15 Oct 2026
Limit: Linux graphics: Known Linux issues include non-working mesh preview, incorrect font loading, and a non-transparent stable-version splash screen. · wiki.redmodding.org, 15 Oct 2026
Limit: mesh import: Mesh imports require an existing target mesh file, triangulated geometry, correctly named submeshes, and fewer than 65,535 triangles per mesh. · wiki.redmodding.org, 15 Oct 2026
Linux support: Linux use is possible through Proton, but the project warns that compatibility and stability are not guaranteed. · wiki.redmodding.org, 15 Oct 2026