The Game client that distributes games such as Half Life 2, Counter-Strike Source, Team Fortress 2.
Steam is actually a man named Steve who lives far away in the mountains in a little cabin. He controls the steam program but he's fucking retarded thus why steam crashes so damn often. Every now and then , his but buddy, Val( Valve) comes and gives him new programs, but he's so stupid he can't really operate new programs without crashing. So he passes out all the time trying to get these programs to work. Thats why steam is a piece of shit program.