Cross-platform game hack for Counter-Strike 2 with Panorama-based GUI.

Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses

HL2-style, classic FPS movement for Unreal Engine implemented in C++

SourceMod - Source Engine Scripting and Administration

Description

Source 1 based games such as TF2 and Counter-Strike: Source

A modern customization framework for Team Fortress 2

🐘 PHP library to query servers that implement Steam query protocol (also known as Source Engine Query protocol)

Momentum Mod - Standalone Source Movement Speedrunning (READ README)

Half-Life Advanced Effects (HLAE) is a tool to enrich Source (mainly CS:GO) engine based movie making.

A Blender addon for importing Source 1 engine maps, models, materials and textures. This addon makes it possible to import full CS:GO, TF2, CS:S or other Source 1 game maps into Blender.

Metamod:Source - C++ Plugin Environment and Detour Library for the Source Engine

Half-Life 2 SDK Mirrors

Admin, ban, and comms management system for the Source engine

A library to analyze CS:GO demos in C#

Multithreaded, hardware accelerated solution to create high quality movies for the Source engine.

Tool to mod Portal 2's Puzzlemaker

A CLI/GUI tool to create, read, and write several pack file formats.

game engine and framework written in luajit

The Blender Source Tools add Source engine support to Blender, the free 3D modelling suite.