I downloaded the 'Fate of Atlantis' game and started playing on my mac. It automatacally opened in full screen window and when I wanted to quit the game I couldnt no matter what. I couldnt get out of the full screen. At the end, very frustrated, I had to press the close button on my mac to turn off the mac. Please help!

The game uses ScummVM to run, and also uses the ScummVM to save, load and quit. The menu is loaded when pressing F1 or F5, I don't remember exactly which. This is on Windows; there should be an equivalent key on Mac. Is there a ReadMe file in the installation folder?

I think there is also a key combination to load the original menus (at least for some games), but I would have to check the ScummVM documentation.