Apocalypse Mode (Terrapocalypse)

Apocalypse Mode
The world will enter Apocalypse Mode after the Crimrupt and Eye of the Ultralord have been defeated.

The world will begin to change in many different ways.
 * The Azure/Ruin/Inferno will spread faster
 * More Azurium Ore/Ruined Steel Ore/Charium Ore will appear in their respective biomes
 * The Gateway will now work