GalCiv3 is advertised as handling 100 Races. It does, but it will not handle 101. It crashes instantly when the total races reaches 101. Everyone needs to understand that 100 races means you and 99 opponents. When the number of opponents reaches 100, the total races reaches 101, and the game crashes.
I found this in version 1.02 when I was thinking that 100 meant 100 opponents. I had manually added opponents to get to 99 then added one more. The game instantly crashed.
It is easier in 1.03 with the Add Random Opponents "slider" at the bottom of the available opponents list. Since this "slider", like other "sliders" in GC3, can be easily and quickly adjusted with the mouse wheel, it is possible to quickly increase the number of random opponents until 100 is reached. When this happens, the game instantly crashes.
If some opponents are manually added, the game will crash when the number of random opponents is increased to bring the total opponents to 100.
Even worse, if the mouse wheel is moved in the other direction, the number will quickly decrease to 0, then go past 0 to some value. It briefly shows 99 before the game crashes.
If clicking on the arrows is used instead of the mouse wheel to change the numbers, the same thing happens.