Half-Life: Source Fixed mod
This mod uses the source 2013 base to fix many of the issues present within the base game. This mod does not currently have a Linux version, but include with this mod is linuxhowto.txt which details a method which you can use to play this mod on Linux...
Toggleable Gibbable Ragdolls Resource Update Half Life Resized Maps Source Shader Editor Alien Grunt Alien Slave
Source: moddb.com