I searched for a thread on this but could not find anything that really explains what I am about to ask. I keep seeing all these previews for mods like Insurgency or the others that are on the home page of this website. All these mods sound wayyyy too good to be true. What does it mean when they say they are mods for half life 2? Does this mean they will become free downloads? Thats why I say its too good to be true, these mods sound like full $50 games. Are they going to be downloadable free mods, or will they be seperate games that will cost money?