AdaVenture
kid-friendly retro point & click 3D OpenGL "adventure" game
AdaVenture is a kid-friendly retro point&click game, intended to be a minimal extension to 3D of the original 2D Atari game named "Adventure". Now runs on Windows, OSX, and Gnu/Linux -- all distros.
Set in ancient Persia, it begins outside the castle of the young King Xerxes, who inherited a golden chalice from his father, Darius the Great. It was recently stolen by a surly foe named King Leonidas of Sparta.
Your quest is to find and return the royal chalice to its pedestal within...