Hello, I installed ESF but i cant put it on Steam. I done the installation to put it open with steam but it didnt show in "Play Games". Then I went to Steam forum got some answers and they got informed that to put a game in Steam I needed its CD KEY, but I cant find any CD Key for ESF 1.2.1. It doesnt work without it, and when I put it to play in Half Life it says my Half Life executable is out of date, and my HL version is 1.1.1.0. Is there a newer version? How can I get myself a CD Key? Plz Help :shocked: :scared: