Yes, my bad. Should have mentioned what version of CIV I'm using (Civ3v1.29, as noted).
It is after looking at the "huggy-kissy" picture. That goes fine, the score/title board barbarian goes fine. It is after that it crashes. When it is supposed to show the score board.
I assumed it had to do with that it couldn't find or figure out what to do with the Civilization since it didn't fit in on any of the (to the game) known Civilizations.
I don't know what to descibe it as other then corruption. Since I played a few "normal" games after the last GOTM to try out some things. Which gets the same crash result when finished even thou they are the in-game civs. So I had to delete my highscore file and then it all worked fine again. So it probably tried to write to the file. Didn't know what to do with it since it didn't fit in anywhere (with the neo-carts) and it crashed and it stored some crap data in the file which prevented it from working properly afterwards.