Originally Posted by
Stillwaters
Cactuar is fourth, behind Omega as well as Leviathan.
Difference is actual active population, not characters created. The census counts any character that has any change (achievements, mounts, level) count toward active players, but not ones that consistently play. Only Omega has closed due to active player numbers reaching the same as the other congested servers. One can assume that Cactuar has not reached the same amount of active players as Gilgamesh, despite having a higher population count.