Hidden Mysteries: Buckingham Palace & Vampire Scerets + Lost Secrets: Vatican Secrets & A Vampires Tale Peel back the curtains on some of the grandest buildings 40 unique hidden object scenes Search for hidden objects and play ingenious mini-games mini games- find the codes to open the doors System Requirements (EACH)... Windows 7 , Vista , XP , SP1 & 2 / 1.2 GHz Pentium IV processor or better / 256 MB of RAM / 600 MB Hard Drive space / 64 MB Video Card / DirectX 9.0c with compatible Video Card / DirectX 9.0c with compatible Sound Card / CD-ROM drive