Half-Life: BestSeller Series (PC)

Registration key would not work

When I recieved this game for christmas, it didn't seem to work for some reason. It started up all fine with the Sierra intro and then the Valve intro. Got to the menu and pressed new game and then the screen went all big and went to my desktop, except the sound of the game was still running. I don't know if it's a compatability problem with my Windows 8.1 or if the game just doesn't work very well. :/

There is no other game like this , maybe "Half- Life 2", with this kind of narrative , this action-package, this puzzles and this isolation.With its release , a new way to make games was born, and his legacy is extense in this days. Thanks for it, we have now, "Team Fortress", "Portal", "Left 4 Dead", "Counter Strike", "Steam"... I know , I am a fanboy "Valve"."Half-Life" is a timeless classic of our time, and "a must have"..

as described fast postage 10/10