Redsand quick facts
- A Tier 4 base resource
- Mined from Redsoil and moved to your base
- Combines with Amethelis to make Voidbloom
- Only valuable as part of the Fluxite chain
Tier 4 resource
Sandustry Redsand: The Base Resource Behind Voidbloom
Redsand is a Tier 4 base resource that appears when you start mining Redsoil. It is not a final product on its own: its job is to combine with Amethelis into Voidbloom.
Mined from Redsoil
Combines with Amethelis
Feeds Voidbloom
Verified against v0.5.5 on 2026-08-20
Official source
From Redsoil to Fluxite
Redsand is the first new input in the late-game Fluxite loop. Each step below is its own bottleneck, so read them in order.
Mine the Redsoil
Redsand comes from Redsoil, a later soil type. It is the source material, not something you can buy or unlock directly.
Transport it to base
Redsand only becomes useful once it is back at your factory, so a clean route from the dig site to your storage matters as much as the mining itself.
Mix into Voidbloom
Combine Redsand with Amethelis to form Voidbloom, which then feeds the Flux Emanator to produce Fluxite.
Why Redsand Matters
On its own it looks like a reskin of Sand, but its role is completely different.
Not another Sand
Sand feeds the early Gold loop through the Shaker. Redsand's documented role is to enter the Voidbloom chain instead.
Marks the Tier 4 jump
Reaching Redsand signals you have moved into the later automation phase, where on-demand Fluxite replaces scattered digging.
Where It Connects
Redsand is easier to remember as one link in a short chain than as a standalone material.
Comes from Redsoil
The raw block you mine, deeper than the SandSoil that feeds your opening hours.
Becomes Voidbloom, then Fluxite
With Amethelis it becomes Voidbloom, and the Flux Emanator turns that into the Fluxite you spend on upgrades.