The Voidrunner Caches in Solar Ash are the only real collectible the game has and they give you a lot deeper look into the crew of Voidrunners who dove into the Ultravoid to save their planet from destruction.
Related: Solar Ash: How To Find All Broken Capital Voidrunner Caches
Collecting all the Caches in a zone also gives Rei a new suit based on the crew member in the Caches. Each suit does something different and they all have very unique looks. The Eternal Garden is one of the most visually
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