Half-Life: Source 2004 - Tentacle Fix - C++ Source Code - Steam Release
Please read before download. I have found December 2004 source code. It was the first release of Half-Life 2 source code. I have removed all stuff from Half-Life 2 and added the stuff from Half-Life: Source. You can download and modify the source code. Wish you a luck.
Download link.
https://drive.google.com/uc?id=1n85ZY-ksaUKMPAtxfTNgFz7Z9KLAI7It&export=download
How To Install.
Download "Game.rar" archive and open it. You will see two folders - "C++" and "Steam". For those people who would like just to play the mod, install Half-Life 2 and Source SDK Base 2006 in Steam. Then open "Steam" folder in archive and extract "hl1_2004" to your "sourcemods" directory. Change the language in Steam to English. Quit and restart Steam. You will see "Half-Life: Source 2004" in your Library. For those people who would like to modify the source code, open "C++" folder and extract "src_mod" folder, for example, to your Desktop. In the "src_mod" you will find "Game_SDK.sln" file. You can compile it only with Microsoft Visual Studio .NET 2003. Good luck.