I've beat your 30x spawnrate with my own 100x spawn and 300x spawnrate mods.
forums.terraria.org
forums.terraria.org
btw, Hello There.
tModLoader - 100x Spawnrate Mod
100X Spawnrate This Mod Increases Spawnrate By 100x And Incrasess Mob Cap By 500x you will try the challange? You Can...
tModLoader - 300x Spawnrate Mod
300x Spawnrate Mod A Sequel to a 100x Spawnrate Mod Multiplies Spawnrates By 300 Times and Mob Cap By 2500 Times! You can find this mod on the mod browser or Download it on Mediafire
btw, Hello There.