Shadowgate Classic refers to several released games by Infinite Ventures in 1999 (a group made of previous ICOM staff). The main release was an updated remake made for IBM PC (Windows '95/'98/2000/Me) and portable systems (Windows CE P/PC and Pocket PC). The latter version included the extra rooms (Armory) of the original versions (B/W Mac or color Atari ST) with new 256 color artwork for the backgrounds and inventory items. The inventory is based on the original Mac and Atari menu.