Can anyone remember what depth creeper has to be for it to convert to AC?
It's (2^31-1)/10^6 which is slightly more than 2147, but less than 2148.
https://en.wikipedia.org/wiki/2,147,483,647#In_computing
In CW3 the visible values of Creeper are divided by 1 000 000 so in-game it would be shown as 2147.
Thanks.