I have this box unchecked, yet when I run the game, it still runs the game in fullscreen mode..... Check attachment for screenshot of the options I am talking about.

EDIT: Also in the Survivor, 2nd game, it *kinda* works but in borderless window mode(which is fine) except that it's snapped to the top left corner of the screen and you can't move the window....

I couldn't get the first one to go windowed either. It also crashes immediately after I finish with settings and try to play the game. Did you ever find a solution to these problems?

To get it working you sometimes have to manually modify the option.txt file. There you need to find the following sections:
maximize_window = 1
window_titlebar = 0
windowed = 1
Then you just need to change the values to correspond your needs. 1 = yes, 0 = no.

Hope this helps.

Huh, no notifications and I barely log onto here.....nice...

No....I don't think I did... Oh well, I'm done with the game anyways, this was years ago....so hopefully your comment helps someone else out instead...