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.
MBSPC which is a cmd map decompiler for Goldsource games, written in C++. It converts BSP files into sources AAS and MAP ones that can be loaded in Hammer.