Turn 247, Huge galaxy, 5 Civs (incuding myself), no mods, all current dlc except mechparts.
Crashes as soon as i end turn and I have been able to reproduce it multiple times. This game also crashed 3 times earlier but i was able to pass those same crash points up until now.
System specs are i7 4790K, 16gb of ram and its running on a SSD.
Here is a dropbox of the save file.
https://www.dropbox.com/s/uqlhu180v9ckyh1/OH%20my%20Gosh.GC3Crusade?dl=0