Voidbloom quick facts
- Created by mixing Redsand with Amethelis
- Converted by the Flux Emanator into Fluxite
- Grows over time, not instantly
- One Voidbloom yields one Fluxite
Late-game material
Sandustry Voidbloom: The Bridge to Automatic Fluxite
Voidbloom is the material that turns Fluxite from a sparse dug-up trace into a renewable product. Mix it from Redsand and Amethelis, then feed it to the Flux Emanator to grow Fluxite over time.
Made from Redsand + Amethelis
Feeds the Flux Emanator
1 Voidbloom = 1 Fluxite
Verified against v0.5.5 on 2026-08-20
Official source
The Chain Voidbloom Sits In
Voidbloom is not a starting material. It is the hinge between two later resources and the machine that finishes the loop.
Redsand
A Tier 4 base resource mined from Redsoil and transported back to your base. It has no use on its own until Voidbloom exists.
Amethelis
The petal material dropped by flowers. Combined with Redsand, it becomes the bridge to on-demand Fluxite.
Fluxite
The upgrade currency. Feeding Voidbloom to the Flux Emanator lets you make Fluxite instead of hunting for scattered deposits.
How to Convert Voidbloom
The conversion is simple, but two details change how you build the room around it.
Drop it on the Flux Emanator
Voidbloom converts when it lands on the Flux Emanator, which is the only machine that produces Fluxite for you instead of requiring you to dig it up.
Leave room below
Fluxite grows out from underneath the Flux Emanator, so keep that space clear. A blocked underside stalls the output just as badly as a missing input.
One for one, over time
Each Voidbloom converts into a fixed single Fluxite, but the growth happens gradually rather than all at once.
Why Voidbloom Matters
It changes the shape of progression: before Voidbloom, Fluxite is luck; after it, Fluxite is logistics.
Closes the Fluxite cycle
Once Redsand, Amethelis, and the Flux Emanator are all running, upgrades no longer depend on finding deposits. Plan the chain and the currency becomes steady.
Sits in the late tiers
Voidbloom arrives alongside Redsand in Tier 4 territory, so it is a long-term target rather than an early-game shortcut.