Quicksaver: If you want to continue the game you can do so by deleting the treasure chest at 67:28.
First off, you're welcome, just glad I can help
Now, about the bug, to continue the game I did nothing like you said about deleting the treasure chest, I just what I said, removed the Dragon's Horde building from the city and then re-added it the turn after, it worked like a charm. Also, the coordinates you gave me were either off or I am not counting the tiles right as there was no chest where you said. I saved a WB file and then opened the file with notepad and searched for the x=67,y=28 entry, tell me if I'm doing it wrong because I really don't know.
Also about 200 turns later I got another CTD (save attached). This time I had to remove every unit in the Elohim capital to get the game to proceed. First I thought it was Alcinus (I had just killed him that turn, and it showed up in that city) but it wasn't, and I did not trial and error to see which unit it was (there were about 15 Vicars or more in there, I just wanted to play

). Re-adding the units (or most of them. I wasn't too accurate) back in the next turn did not affect gameplay like before.
I did notice there was a Treasure Chest in the same tile and it was only a few tiles off the coordinates you gave me, I couldnt tell if it was a simple potion or was one of the treasure quests-treasure chests... Could that have been the chest you mentioned? It was right in the city's tile.
Also on a side note (not CTD), I don't know if this has been reported, but I did try removing every chest I could find (while trying to fix the CTD), and to my amasement, some of the civs that I had already killed but remained in the score list were now killed for good, suggesting perhaps they were still linked to those chests and wouldn't be "killed" untill those chests were finally removed/found/taken/whatever?
Edit: Oh and, like I said, it's the same game only a few turns later, so same conditions as before, no extra modules but the ones already in the default RifE install.
Edit 2: Uploaded wrong save, sorry, this is the right one