How to Unlock Blacken Firmament in Vampire Survivors

Blacken Firmament is a valuable unlock in Vampire Survivors that requires a specific character and time commitment. This guide walks you through the exact steps needed to obtain this achievement and unlock the Blacken Firmament stage.

Overview of the Blacken Firmament Unlock

To unlock Blacken Firmament in Vampire Survivors, you need to complete a straightforward challenge: survive for 15 minutes using the character Balthazar. Once you meet this requirement, the unlock notification will appear, and Blacken Firmament will be added to your available stages.

Step-by-Step Instructions

Step 1: Select Balthazar as Your Character

Begin by choosing Balthazar from your character roster. Balthazar is the character required for this specific unlock challenge.

Step 2: Choose Any Map

Select any map you prefer to play on. The map choice does not affect the unlock requirements—only your character selection and survival time matter.

Step 3: Survive for 15 Minutes

Play through the stage and survive for a full 15 minutes. This is the core requirement for unlocking Blacken Firmament. Once you reach the 15-minute mark, you can quit the run—you don’t need to complete the full stage.

Step 4: Receive the Unlock Notification

After surviving 15 minutes with Balthazar, you will see an unlock notification appear on your screen. This confirms that Blacken Firmament has been successfully unlocked. You can verify this by checking your unlocks list, where you’ll see “Survive 15 minutes with Balthazar” listed under Legacy of Bloodmoon, with Blacken Firmament noted as the reward.

Summary

Unlocking Blacken Firmament is a simple process: select Balthazar, pick any map, and survive for 15 minutes. There are no additional requirements or special conditions to meet. Once the timer reaches 15 minutes, you can end the run and the unlock will be yours. This achievement is part of the Legacy of Bloodmoon unlock chain in Vampire Survivors.

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