Sandustry Sandstone: Complete Mining, Refining & Density Guide

Why Sandustry Sandstone Is the Foundation of Every Factory

Every factory in Sandustry starts with one fundamental resource: the sandstone deposits beneath your feet. Whether you're wetting sand for gold extraction or routing slag through filters, understanding Sandustry sandstone behavior determines whether your operation thrives or collapses under poor logistics. This guide breaks down everything from the basic 1+1 wetting rule to advanced density-based separation techniques that experienced players use to maximize gold yields.

Sandustry launched into Early Access on August 13, 2026, bringing its physics-driven sand automation sandbox to Steam, GOG, and Game Pass. The game's core loop—dig sandstone, wet it, shake for gold, and reinvest in research—sounds deceptively simple. But sand physics, density sorting, and fluid management turn that loop into a genuinely complex engineering challenge. You can check out the official Sandustry Steam page for the latest updates and platform availability.

The Core Refining Loop: From Sandstone to Gold

The journey from raw Sandustry sandstone to spendable gold follows a specific chain of transformations. Each step has its own rules, ratios, and failure modes that can stall your entire production line if you ignore them.

Step-by-Step Material Flow

That 1+1=2 wetting rule is the first ratio every player memorizes, and for good reason—it governs how much water you need relative to your sand throughput. Community reports indicate that shaker gold yield hovers around 20–25% of Wet Sand input, though pile depth and belt timing significantly affect results.

Common Bottlenecks in the Refining Loop

• Dry sand backup: Occurs when wetting can't keep pace with mining speed
• Water flooding: Happens when you overwater without drainage planning
• Shaker starvation: Wet Sand feed becomes inconsistent, causing gold yield drops
• Slag accumulation: Heavy slag sinks and clogs output lines if not routed deliberately
• Conveyor misalignment: Even small gaps cause gold losses that hurt your research budget

Each of these bottlenecks compounds. A dry sand backup leads to irregular wetting, which starves the shaker, which drops your gold output precisely when you need it for the next research tier. The key is identifying which stage is failing before the whole chain collapses.

Density Mechanics: How Materials Stack and Separate

Density is the hidden mechanic that governs how all materials in Sandustry behave when they pile up. Sand, Wet Sand, Slag, RedSand, Lava, and Gold all have different densities, which means they naturally separate when stacked—heavier materials sink while lighter ones rise to the top.

Material Density Reference Table

Understanding these density relationships is critical because Filters and Launchers exploit the gaps between material densities. When manual sorting fails, a well-placed filter can automatically split mixed piles into usable streams.

Why Density Charts Matter for Your Factory

Player experience shows that density-based separation becomes essential once you scale beyond a single shaker. Without deliberate routing, heavier materials like slag will sink through your Wet Sand piles and eventually clog conveyor lines. The solution is to design your factory layout with density in mind from the start—position filters where natural separation occurs and route heavier materials downward before they reach your gold extraction line.

Sandustry sandstone processing rewards players who think in layers. If you imagine your material flow as a vertical column where gold sinks and slag follows close behind, you can design conveyor angles and filter positions that work with gravity rather than against it.

Building Your First Sandstone Processing Line

Setting up your first production line requires careful planning of building placement, material flow, and throughput ratios. The community wiki's Buildings Hub maps each machine to the materials it handles, but here's a practical starting layout for new players.

Essential Buildings for Sandstone Processing

Starter Factory Checklist

• Dig a sandstone deposit close to a water source to minimize pipe routing
• Set up a wetting station with controlled water flow—avoid flooding
• Place a diagonal Shaker with the correct feed angle for optimal separation
• Route Gold output to a storage container or research bench
• Route Slag output to a disposal zone or flamethrower processing area
• Install conveyors with no gaps or misalignments between connection points
• Keep a vacuum tool ready for material relocation and emergency cleanup

The diagonal Shaker is the heart of your operation. Its placement, feed angle, and output split determine your gold yield. Community tests suggest that optimal shaker placement achieves closer to the 25% gold yield ceiling, while poorly positioned shakers may drop to 20% or below. That 5% difference compounds rapidly when you're saving for expensive mid-game research unlocks.

Advanced Tips for Scaling Production

Once your starter factory is running, scaling up requires mastering water management, throughput tuning, and the deeper material chains that unlock mid-game content.

Water Management Strategies

Water isn't just a crafting ingredient—it's a fluid that can flood tunnels, freeze into Ice, and boil into Steam when heated. Managing water without drowning your dig site is a skill that separates new players from experienced factory builders.

Snow and Firn represent the only renewable water paths besides duplication tricks. Snow plus water creates Ice, while snow plus lava creates Scoria and consumes the snow in the process. Planning your water supply chain early prevents catastrophic flooding when you scale up shaker count beyond two or three units.

Mid-Game Material Chains Beyond Sandstone

Once your Sandustry sandstone operation is self-sustaining, the game opens up several advanced material chains that demand attention:

• Fluxite production: Flowers drop Amethelis → mix with RedSand → Voidbloom → feed Flux Emanator → harvest Fluxite below (limited to one Emanator per factory)
• RedSand mining: Denser than regular sand, requires dedicated filter separation
• Lava, Scoria, and Cinder: Heat-based materials for advanced processing and hazard management
• Spores and Seeds: Farming mechanics and botanical density interactions
• Voidbloom and Amethelis: Botanical mixing chain that feeds directly into Fluxite generation

Throughput Optimization Checklist

1. Balance your ratios: Use production ratio tables to match sand mining, water supply, and shaker capacity before spending gold on machines
2. Prevent belt clogging: Feed shakers with steady Wet Sand flow rather than burst-feeding from large dumps
3. Use density to your advantage: Let natural separation do work before adding filter buildings
4. Monitor pile depth: Deeper piles on shaker screens improve yield according to community benchmarks
5. Invest in research strategically: Follow the Research Priority Tier List rather than buying machines randomly
6. Choose tools wisely: Flamethrower for slag processing, vacuum for material relocation and cleanup

FAQ

What is the best way to mine Sandustry sandstone efficiently?

Start by digging deposits near a water source to minimize pipe routing. Use the vacuum tool for relocation when deposits run dry, and always keep your wetting station within conveyor range of both your dig site and shaker. Community reports suggest that maintaining consistent sand flow to wetting stations prevents the most common throughput issues in the first hour of gameplay.

How much gold can I expect from processing Sandustry sandstone?

Community tests indicate that Shakers produce roughly 20–25% gold from Wet Sand inputs. However, pile depth, belt timing, and shaker placement all affect actual yields. Players who optimize feed angles and maintain deeper piles on shaker screens tend to hit the higher end of that range. Compare your results against community ratio tables to identify where your chain is losing efficiency.

What should I do when slag overwhelms my processing line?

Route slag output deliberately rather than letting it accumulate on shared conveyors. Use a flamethrower for slag disposal or processing, and consider a dedicated conveyor line that moves slag away from your gold extraction area. Because slag is denser than Wet Sand, it will naturally sink—so position your slag output below your shaker and install filters if mixed piles become a recurring problem.