Yes, my fs is Mac OS Extended (Case-sensitive, Journaled). How ignorant of me. This is my first Mac. I never thought the OS used to depart so much from the tradition.
Geneforge 5 gives exactly the same error, with the correct icon this time.
I'm not thrilled at making my Terminal feel like cmd.exe. UNIX has been case-sensitive for eons immemorial and I'd not like to change it now.
So what do you think, Mr. Vogel? Will you support UNIX geeks or must I create a new partition solely for Spiderweb games?
UPDATE:
It's weird. I put the game in a partition of Mac Extended case-insensitive fs, with or without journaling, and one of FAT. In no case did the game work. It's the same black screen and error message.