It exists as of Sept. 23, 2012.
Game over man, game over!
Published on July 4, 2018 By Fulgrymm In Galactic Civilizations III

So, I'm playing as the United Federation of Planets, and every time I form an alliance with another empire I get the defeat screen. No mods, only UFP, UFP TOS workshop races for this particular save. Save is here. 

EDIT: DLCs installed are everything except Intrigue.


Comments
on Jul 04, 2018

The last time someone reported a problem exactly like this it turned out that the civ he formed an alliance with already had alliances with all the other civs, so it won an alliance victory.  Are you sure your case is different?

on Jul 04, 2018

Well drat, that does seem to be the case. A pity, that leaves me with a tech victory.

on Jul 05, 2018

The other option would be to play with more civs on a bigger map.