Half-Life: Source 2004 is the mod, that aims to fully fix the original Half-Life: Source, that is based on Source SDK 2013. As a reference I am using Half-Life: Source Fixed C++ source code, that is created by BloodyMuffin. I am using the Source SDK December 2004 C++ source code and I would like to say, that the game looks more stable on this version, than on Source SDK 2013. I will provide a game itself with C++ source code. If you would like to compile the C++ source code you will need to have been installed on your computer Microsoft Visual Studio .NET 2003 Professional. Don't try to compile on other version of Microsoft Visual Studio because it will not compile the C++ source code.