csgo_gc

[!CAUTION] This project is incomplete and not ready for general use.

What is this?

In Valve games, the Game Coordinator (GC) is a backend service most notably responsible for matchmaking and inventory management (like loadouts and skins). This project redirects the GC traffic to a custom, in-process implementation.

Why would you want this?

While it's still possible to connect CS:GO to CS2's GC by spoofing the version number, this may break in the future if Valve updates the GC protocol. This project aims to restore most GC-related functionality without relying on a centralized server.

Current features

Editable inventory (inventory.txt)
Item equipping
Opening cases (including sticker capsules, patch packs, graffiti boxes and music kit boxes)
Graffiti support
Weapon StatTrak support
Stickers and patches
Name tags
Music kits
In-game store
Works without full Steam API emulation
Full Windows, Linux and macOS support
Functional lobbies
Dedicated server support
Functional server browser (only shows csgo_gc servers by default)
Networking using Steam's P2P interface

Planned features

Rest of the core features (trade ups, souvenirs, storage units, StatTrak swaps...)

I'm still looking for the full CS:GO Item Schema. If you have a relatively recent copy of it and are willing to share it, let me know!

Not planned

Matchmaking (can't be implemented without a centralized server)

Installation

Download CS:GO from Steam
Download the latest release for your platform from the releases page
Navigate to the game's installation directory
Back up your existing launcher executables as they'll be overwritten (i.e. csgo.exe, srcds.exe, csgo_linux64, etc.)
Extract the contents of the downloaded archive to your game directory, replace the executables when prompted
Launch the game. If you get the annoying VAC message box, launch the game with the -steam argument
macOS users: The release binaries are not notarized, so if you're using them, you'll have to deal with that somehow

Inventory editing

For GUI inventory editors, see https://github.com/mikkokko/csgo_gc/issues/82. For manual editing, there is a guide made by someone else here.

Configuration

See csgo_gc/config.txt for available options.

Building

Requirements:

Git
CMake 3.20 or newer
C++ compiler with C++17 support (VS 2017 or later, Clang 5 or later, GCC 7 or later)

The game is 32-bit on Windows so you need to build as 32-bit:

cmake -A Win32 -B build

Linux dedicated servers are also 32-bit:

cmake -DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32 -DCMAKE_ASM_FLAGS=-m32 -B build

On macOS, you need to build for x86_64 instead of arm64:

cmake -DCMAKE_OSX_ARCHITECTURES=x86_64 -DFUNCHOOK_CPU=x86 -B build

For Linux clients you don't have to specify any additional options.

License

This project is licensed under the 2-Clause BSD License. See LICENSE.md for details.

Credits

Mikko Kokko - Author
Theeto - Code reused from the predecessor project, unusual loot lists