Source2Toolkit SDK

Source2Toolkit SDK is the core development kit required for building plugins for Source2Toolkit.

It bundles everything you need — headers, SDK, hooking system and build helpers — so you can focus purely on writing your plugin.

👉 Docs & guides: https://www.source2toolkit.net

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What is this?

Source2Toolkit SDK is a lightweight development layer that provides:

• Preconfigured HL2SDK (CS2)
• Integrated KHook hooking library
• Ready-to-use Source 2 headers & interfaces
• Cross-platform build configuration
• Simple plugin build system

No setup. No hunting dependencies. Just build.

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Why use it?

• Zero setup – everything included (SDK, hooks, protobufs)
• Fast builds – optimized CMake configuration
• Clean integration – designed specifically for Source2Toolkit
• Cross-platform – Windows & Linux support out of the box
• Minimal boilerplate – create plugins in seconds

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Quick Start

👉 Full docs: https://www.source2toolkit.net

1. Add SDK to your project

git submodule add https://github.com/SlynxCZ/source2toolkit-sdk.git
git submodule update --init --recursive

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2. Minimal plugin setup (4 lines)

cmake_minimum_required(VERSION 3.18)
project(my-plugin CXX)

add_subdirectory(source2toolkit-sdk)
add_s2toolkit_plugin(my_plugin plugin.cpp)

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Building

mkdir build && cd build
cmake ..
cmake --build . --config Release

Output:

my_plugin.stx

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What's Included

• HL2SDK-CS2 (as submodule)
• KHook (inline & virtual hooks)
• Protobuf definitions
• Tier0 / Tier1 / Mathlib
• Schema system headers
• Preconfigured compiler flags & linking

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Helper API

add_s2toolkit_plugin

add_s2toolkit_plugin(my_plugin plugin.cpp)

Automatically:

• Links SDK
• Sets correct output (.stx)
• Applies all required flags

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Requirements

• CMake 3.18+
• C++20 compiler
• Source2Toolkit installed on server

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Documentation

• Docs: https://www.source2toolkit.net
• Getting Started: https://www.source2toolkit.net/docs
• API Reference: https://www.source2toolkit.net/docs

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License

This project is licensed under the GNU General Public License v3.0.

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Everything you need to build Source2Toolkit plugins. Nothing more.