.....
When two players finish a research or wonder at the same time, the tie will go to the player who is first in the order of players turn. In simultaneous games, everyone goes at the same time, so whose turn is run first?
.....
A smart person would say that its the person who ends their turn first..... Dont worry if you didnt think this, because its wrong anyway.
.....
unlike normal games where player 0 always gets to start their turn first, all the player IDs are shuffled. Then, players start their turn in the shuffled order, so player 0 is not always first, and its a matter of luck as to who wins if two Civs finish at the same time