C++ source-engine

Open-source C++ projects categorized as source-engine

Top 12 C++ source-engine Projects

  • Osiris

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

    Project mention: How to use Iniuria? | reddit.com/r/Csgohacks | 2023-05-17

    Not undetected (afaik) but Osiris, use it on a non-prime account until you inevitably get banned, rinse and repeat until you're comfortable with cheating, then buy Iniuria and a decent prime account.

  • PBCharacterMovement

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

    Project mention: The Next Generation in Graphics, Part 1: Three Dimensions in Software | news.ycombinator.com | 2023-04-27

    Let me make the case that it's definitely not just nostalgia - or, at least, that Quake style movement didn't fade away because of any objective, rational process.

    One of the exasperating consequences of the rise of game engines has been that you have games shipping that have more and more of their game design inherited from their game engines.

    On some level this makes sense - games are just massively complicated, and so if you already have working, tested code, it's often quite tempting to just go with what already works (and not spend time really internalizing how working things work) and then focus on figuring out the particular things you are adding from that baseline.

    As just such an example, when I was working on Activision's Soldier of Fortune, we largely inherited Quake 2's movement code, and most of it was left untouched by the time we shipped. At some point, midway through development, inspired by Thief, I stayed late one night with a co-worker, and I added in leaning around corners to the player controls. I don't remember the particulars of that process, but (obviously) I had to make tons of aesthetic choices while doing that, because I was writing it from scratch. But the base movement we could inherit.

    If you go back and look at first person games from the late 90's, their aesthetic choices about basic player movement are all different in subtle ways. That makes sense, because most studios were writing their own bespoke engines at the time, and there was vastly less code sharing. So people were writing code because there was no particular alternative, and so they were making tons and tons of aesthetics choices whether they wanted to or not. Lots of those choices weren't always great, but they were often particular.

    It's clear at this point that lots and lots of FPS games just inherit Unreal Engines movement. Not because it's great, but because it comes with Unreal and it's a default. To me, there's something very specific about the way friction works with player movement in Unreal that feels very ... sticky? ... compared to Quake Engine games. Players come to a stop when input is released in a way that feels like being in glue - again, at least to me. There's more subtle gliding around in Quake. As far as I can tell, the difference rarely effects game play in most games. But it does change how it feels aesthetically to play moment by moment.

    Anyway, this topic feels intensely path dependent to me. Unreal's movement is the default because Unreal is the default engine (in a lot of contexts), but it didn't become the default because of anything specific about its player movement code. Those aesthetic decisions were just along for the ride, so to speak. Or at least, that's my sense.

    Interestingly, I found a github project a while ago that tried to reverse engineer Quake / Source's movement and put it into Unreal Engine 4. No idea how successful the project is, but I suspect it might be an interesting resource for seeing what's different between the two: https://github.com/ProjectBorealis/PBCharacterMovement


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  • source-engine

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

    Project mention: Portal could actually be ported to PlayStation Vita | reddit.com/r/Portal | 2023-05-13

    But another thing is online someone has released a modified version of the source engine and its code, (Github link for the modified source engine) and it has arm and 64-bit support so we already know that it can run on the vita. but either way it could also be made in unity. Anyways I wanted to ask if someone could port it to the vita, it would be a blessing to a lot of people actually.

  • game

    Momentum Mod - Standalone Source Movement Speedrunning (READ README)

    Project mention: Zaal Vs FL_v1 (Made with Hammer ++) | reddit.com/r/csmapmakers | 2023-03-24

    Additional help with code: SCell555 / Momentum Mod team

  • advancedfx

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

    Project mention: thoughts on Half Life Advanced Effects? | reddit.com/r/GlobalOffensive | 2023-03-11

    I have used it since ~2007 in CS 1.6 when it was called Mirv Demo Tool, and now I use it to edit CS:GO fragmovies. It revolutionized content creation in CS 1.6 / GoldSrc and even to this day it is a necessity for serious video editors in games such as CS:GO.

  • SourceDemoRender

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

    Project mention: how do people make their cs:s look so good for surf? | reddit.com/r/SkillSurfing | 2022-09-20

    Most (like Ksf) use SDK https://github.com/crashfort/SourceDemoRender You should be able to find a tutorial somewhere.

  • hl2sdk

    Half-Life 2 SDK Mirrors

    Project mention: Counter-Strike: Global Offensive update for 6/23/22 ( | reddit.com/r/GlobalOffensive | 2022-06-24

    A potential fix has been found and tested on a few different servers and seems to work. Not sure about Faceit, but hopefully the SourceMod maintainers will be pushing an update Soon™.

  • Sonar

    Write Clean C++ Code. Always.. Sonar helps you commit clean C++ code every time. With over 550 unique rules to find C++ bugs, code smells & vulnerabilities, Sonar finds the issues while you focus on the work.

  • tf2-patches

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

    Project mention: Meme collected from Twitter | reddit.com/r/tf2 | 2023-05-29

    They did recently added community fixes from mastercoms and makaroffilya in the March 1st and March 20th update. So I'm 100% certain that they'll add plenty of fixes from Team Comtress 2 (which is now TF2 Patches) and probably whatever they'll find from the workshop for this summer update.

  • source-pbr

    Source Engine Physically Based Rendering implementation

    Project mention: Someone help me add a PBR to Source SDK 2013 Singleplayer | reddit.com/r/SourceEngine | 2022-11-12

    You should look at https://github.com/thexa4/source-pbr

  • LeySourceEngineProxyServ

    Ley Proxy Servers for Source engine servers - Zyre. Think of cloudflare but for source engine and with geo-cast based server ping enhancing for free. I've created this tool to A. protect my servers by hiding their real IP entirely. The only visible IPs will be the node IPs. And B. to artifically enhance the ping on the server list of source servers to get more players to join. Unlike anycast this does not have any costs besides your server costs. It avoids duplicates by only letting the location

  • Portal-Base

    Port of Portal 1 2007 leaked source code to Source SDK 2013. Also includes fixes for Half-Life 2 maps and gameplay.

  • CmdMenuGenerator

    A generator for efficient creation of recursively-nested voicemenus for commands.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-05-29.

C++ source-engine related posts


What are some of the best open-source source-engine projects in C++? This list will help you:

Project Stars
1 Osiris 2,835
2 PBCharacterMovement 979
3 source-engine 562
4 game 446
5 advancedfx 421
6 SourceDemoRender 259
7 hl2sdk 246
8 tf2-patches 148
9 source-pbr 109
10 LeySourceEngineProxyServ 65
11 Portal-Base 64
12 CmdMenuGenerator 11
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