Half-life: Source Free Download Direct

: It may still appear in legacy packages like the Half-Life 1 Anthology . Technical Context & "The Source Problem"

Largely abandoned by Valve in favor of the original GoldSrc version. Half-Life: Source Free Download

For those looking into the "paper" or research side of the game's history: Guide :: How To Enjoy Half-Life: Source WITH Mods : It may still appear in legacy packages