Got the Mac version of this game and it's been great except I cannot save. I know it's supposed to be autosave but then when I quit the game and try to pick up where I left off, the "continue" option is greyed out and cannot be selected. I also cannot any manual option to save so I don't think I'll be able to complete it unless I like leave the game running overnight and pickup later. Other than that, I think it's pretty awesome so far, great job!