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Impending Darkness Event is the final Dungeon in Melvor Idle.
Starting the event will lock combat content except for the event. You are able to train non-combat skills while in the event, when not in combat. The event's progress is saved. The only way to stop the event is dying or the Stop Event button.
This is a safe death for hardcore characters. Hardcore characters will have normal death penalties, except for the permanent deletion.
The event has 5 stages. At the beginning of each stage, you select a random modifier that applies to all monsters of the current stage and future stages. A random number of 5-8 monsters must be defeated per slayer area, with a harder, "Boss" version being the final monster per area. The Mist Boss enemy passive gives the enemy +20% Maximum Hitpoints, +20% Damage Reduction, -20% Attack Interval, +20% Accuracy Rating, and +20% Global Evasion. The final monster of the final slayer area cleared each stage will be Bane. On the 5th and last stage, the final boss will be Bane, Instrument of Fear.
The Slayer Areas Shrouded Badlands, Perilous Peaks, Dark Waters, and Unhallowed Wasteland must be cleared per stage of the event. The area effects of these slayer areas are applied as combat happens in the area.
Impending Darkness Event provides several rewards: