Top 56 source-engine open source projects

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

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

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

Half-Life 2 SDK Mirrors

a game framework written in luajit

Tool to mod Portal 2's Puzzlemaker

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

A tool to assist in the compiling of source engine maps

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

Free open-source game cheat for Counter-Strike: Global Offensive, written in modern C++. GUI powered by Dear ImGui.

A high-performance java game query library designed for steam/source based games and others

The Source 2 Pancake FPS Starter Kit.

Standard Items for the BEE2.4

A Team Fortress mod on the Source Engine

Source Engine Physically Based Rendering implementation

A Source Engine navigation mesh file parser written in Go.

Zombie Master, an RTS/FPS game on the Source 2013 engine.

A python VMF parser

Team Fortress 2, but with a lot of fixes, QoL improvements and performance optimizations!

SourceMod - Source Engine Scripting and Administration

HL2-style, classic FPS movement for Unreal Engine 4 implemented in C++

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

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

A modern Team Fortress 2 performance and customization config

Description

Momentum Mod - Standalone Source Movement Speedrunning (READ README PLEASE)

A library to analyze CS:GO demos in C#

A 3D platformer with roots in bunnyhopping and portal strategy

Source RCON Protocol Java library

Kero is a Source Engine game engine client implementation written in Go.

Modification of Source Valve Hammer Editor to fix some issues. Fixes brush vertex precision loss.

A Source Engine BSP Renderer written in Go.

Small fun scripts

Porting Half-Life 2 base to the newer Alien Swarm Engine!

Artificial intelligence to create Bots in Source Engine.

Speedrun plugin for Source Engine games.

A compact and Garry's Mod compatible SourceSDK (don't use in other Source engine games).

Modules for working with Valve's Source Engine file formats.

A source engine network client implementation based on some of my reversing work with basic functionality ( joining servers, talking, receiving/sending voicedata etc. ). Made this & reversed netchan to learn about Sources networking.

Source code for the free Steam game, Estranged: Act I.

Recreation & expansion of NPCs, entities, and weapons from the Half-Life series into Garry's Mod!

A Node.JS library for sending Source Server Queries (SSQ) to source engine powered game servers (TF2, L4D, etc.).

A tiny 3D engine that loads and renders Source engine maps - Also known as dreieck.exe

A Valve Map Format (.vmf) and Valve Material Type (.vmt) importer for Blender.

Game engine inspired by id Tech and Source written in C#

A Git-based fork of Valve's NextBot code.

A custom Source Engine level editor written in Go

CallAdmin is a multilingual sourcemod plugin which provides in-game report functionality

Source RCON client for command line

Standalone shadercompile, that doesn't depend on valve libraries and supports x64

Plugin to import resources from the Source engine in Unity3D.

Go package for parsing Valve's Source Engine .bsp (Binary Space Partition) map files

Three.js loader for parsing Valve's Source Engine models

Fragsurf is an actively developed standalone game based on HL2 surf and bhop movement mechanics.

An addon for Garry's mod that contains bunch of bases to make many different types of addons.

LGSL v6.2.0 for PHP 5.4-8.2.0dev (Live Game Server List): online status for Discord, FiveM, Rust, CS, SA:MP, GMOD, Minecraft, Source Query, etc.