How to Unlock Cavern of Corrosion in Honkai Star Rail
In this guide, we will discuss how to unlock Cavern of Corrosion in Honkai Star Rail. Even late in the campaign, Honkai Star Rail keeps adding new stages and farm locations. The Cavern of Corrosion is one such location since it is home to rare items vital to your development as a player. Following is our strategy for gaining access to the Cavern of Corrosion in Honkai Star Rail.
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How to unlock the Cavern of Corrosion
You may access the Cavern of Corrosion through the Survival Index of the Interstellar Guide after you’ve enabled it. Several rare Relic materials, such as those from the Passerby of Wandering Cloud set, are included.
To get access to Cavern of Corrosion, you must complete many stages of the Trailblaze assignment In the Sweltering Morning Sun. Serval and Gepard play significant roles. It’s at the conclusion of your trek over the icy landscape of Jarilo-VI.
Until you reach Trailblaze level 24, you will not be able to begin the mission. Next, proceed to the Cleanse in the Darkness Outside sub-submission.

There is a substantial amount of dialogue in Cleanse in the Darkness Outside. The next step is to submit your work on the Unreachable Idol. In order to reach the boss fight with Gepard, you must first defeat a large number of Silvermane Guard adversaries. After you’ve vanquished him, the Soldiers Stay Silent side quest will activate.
There will initially be a three-wave fight against enemies of average strength. The Stars Are Cold Toys will start playing automatically after the resolution of that conflict’s subsequent debate.
In order to complete The Stars Are Cold Toys, you must use all of the devices in the Corridor of Fading Echoes. In order to reach the other side of the enormous pit in the middle of the region, you must first spin a giant gear counter-clockwise one time.
Walk along the relocated gear and head out onto the next balcony. If you do this, a doorway to the Corrosion Cavern will open before you. You’ll turn it on so you may return whenever you like. 40 Trailblaze Power is needed for each run.
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