Great game , bought it from a retail store like 8 years ago, but lost the cd . I love you Gog , for you have supplied me with one of my favorite retro games of my childhood. For some strange reason I got an error loading the game, during the first "Monolith" and other company splash screens ; I was freaking out. To fix this , you have to press the ESC key , until you reach the main game screen, works well after that.