Mu fault.
Testers reports that "it does nothing and takes 100% CPU" - it is a console program, text based game (fpc comes from free pascal distribution installed with yum). No threads, no nothing - at least nothing advanced like threads. No error messages.
Debugger? I dont have access to debian/ubuntu machines nor i can install there fpc. I'll try to find one, but it takes a few days.
Thanks
Weq
PS. It is win32 version ported to linux. With very little changes done, for example no addtional libraries has been used.