* The library component of Source 2 Viewer is called ValveResourceFormat (VRF).

Valve's Source 2 resource file format parser, decompiler, and exporter. Source 2 files usually end with _c, for example .vmdl_c.

This repository is split into three components:

• CLI Decompiler - File data viewer, decompiler and a playground for testing new formats and features.
• GUI Viewer - A vpk archive viewer and extractor. Also supports viewing resources such as sounds, textures, models, maps, and much more.
• Library - Provides public API to parse resource files and some helpers.

⚒ View the official website for downloads.

• VPK viewer which supports opening and exporting files
• Creating new vpk archives
• Model viewer and decompiler to glTF and modeldoc
• Map viewer and decompiler to glTF and vmap
• Material decompiler to vmat
• Sound player
• Binary KeyValues3 parser
• NTRO support

This tool is based entirely on a reverse engineered effort because Valve does not provide any documentation or Source 2 code (SDK or engine code), while the Source 1 SDK and leaked engine code are helpful, a lot of systems and formats have changed.

The code contained in this repository is based on countless hours of reverse engineering Source 2 games and not all intricate details have been figured out.

If you are interested in helping, take a look at the open issues and join our Discord.

Not all formats are 100% supported, some parameters are still unknown and not fully understood.

Contents of this repository are available under MIT license, except for Tests/Files folder contains files which have likely come from Valve's games.