Community Games Repository: Seven Kingsdoms - how to force window mode?

Hi,
i just found and installed an old game i played as a child from the Community Games repository, it is called Seven Kingdoms.
It is open sourced it seemed and runs naively on linux (no wine or other emulator needed), the only problem is it runs in fullscreen and messes up my 3 monitor desktop configuration every time it runs (open windows get moved, i have only one KDE bar on one of the secondary screens but it get moved to the primary screen too)

Is there a way to force the game in window mode? the game itself does not provide such features?

Just a guess, but you could try from terminal:

 «launcher name» -w