Named Game of the Year by over 50 publications, Valve's début title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Oh man i wanted to do that myself, guess its late
Do you plan on doing a LD NPC pack for Half Life: Echoes?
nope. i don't want make bones for NPC
There's already LD npcs pack for echoes Moddb.com