Half-Life 2 (Source) SFX
Replaces most game sound effects and music with ones found in Half-Life 2/the Source Engine, which are also used in other Source games like Portal, Garry’s Mod, Counter Strike, Team Fortress 2, etc.
Currently most sounds and about half the music is replaced, but I plan on replacing more. If you have any suggestions or find anything that sounds off please let me know.