Demon Siege (Aequus)

"The Oblivion Altar consumes your <item>..."

The Demon Siege is a Pre-Hardmode event triggered by placing a compatible item into a Oblivion Altar. Unlike most events, it is not based on how many enemies are killed, instead having a strict duration where the player must defend against an incoming horde of demonic enemies as the Oblivion Altar processes their item. Once the progress bar reaches 100%, it will deposit the transformed item and the event will end.

The event's radius is illustrated by a large red aura around the Oblivion Altar; it is only active while a player is inside it, and otherwise event enemies will not spawn and the event's duration will tick down instead of up. If it reaches 0%, the Demon Siege will end and the Oblivion Altar will eject the inputted item unchanged. Aside from the items listed below, an Unholy Core can also be used to activate the Demon Siege, but the event will be shorter than normal and no item will be produced at the end.

While the event is active, the vanilla music Storm will play.

Demon Siege
Characters	Unique Drops
Legged Lava Cinder Bat Keeper Imp	From all enemies: Eidolic Energy From Legged Lavas: Lava Charm From Cinder Bats: Magma Stone War Horn Ancient Hell Beams Dye Bat Bat From Keeper Imps: Obsidian Rose	Oblivion Altar conversions: Hell's Boon(from Light's Bane) Cauterizer(from Blood Butcherer) Hama Yumi(from Demon Bow) Deltoid(from Tendon Bow) Triacanthorn(from Vilethorn) Bombarder Rod(from Crimson Rod) Piranha Pot(from Corrupt Pot) Brainwave Staff(from Mindfungus Staff) Rabbit's Foot(from Bunny) Death's Embrace(from Bottle O' Spirits)

Aftermath

Once a Demon Siege has been defeated for the first time, the following will occur:

• The Occultist can move in.