Sandustry Biomes: Complete Map Guide to Every Underground Cavern and Surface Zone

What Are Sandustry Biomes?

Sandustry is a factory automation game built around digging, moving, and processing endless pixel-perfect sand. Developed by Lantto Games and published by Hooded Horse, the game launched in Game Preview on August 13, 2026, for Xbox. As players expand their operations, they quickly discover that the map is far more than a single sandbox — it contains distinct Sandustry biomes, each with unique resources, terrain types, and challenges that shape how you build your factory.

Understanding these biomes matters because resource availability, mining difficulty, and traversal options vary dramatically from one zone to the next. Whether you are hunting for copper ore, chasing down void creatures, or trying to connect a portal network between the surface and deep caverns, knowing what each biome offers saves hours of trial and error. Player experience from the community suggests that the map may be procedurally generated in grid-like chunks, meaning biome layouts can differ between playthroughs while the core resource types remain consistent.

Surface Biomes and Their Resources

The surface layer of Sandustry is where most players begin, and it contains several sub-biomes worth identifying early. Based on community reports, the surface includes standard sand zones, ice mountains, stone deposits, and even a mysterious magic wall that blocks further progress until specific upgrades are unlocked.

Key Surface Zones

One important detail from player experience: the surface contains destructible stone that rockets can break apart, opening up hidden caverns rich in fluxite. Players recommend thoroughly exploring the surface before heading underground, as these caverns often contain valuable upgrade materials. The ice mountains are particularly useful early game because snow can be collected and melted into water, which is essential for washing and processing resources.

A notable feature on the surface is the creepy eyeball visible in the distance, which community reports suggest may be tied to a future biome or event. For now, players should focus on mining destructible stone near the mountains and collecting ice for water production.

You can learn more about Sandustry on its official Xbox store page, where the developers describe the game as a deep automation experience.

Underground Cavern Biomes

The underground layer is where Sandustry biomes truly shine. As players dig deeper, they encounter a network of interconnected caverns, each with distinct characteristics. Community reports indicate these caverns may appear as procedurally generated grids, though this has not been officially confirmed.

Underground Biome Breakdown

The soil caverns are the workhorses of underground mining. These biomes contain massive deposits of sand and soil that can keep a factory running for extended periods. Player experience shows that setting up sweeper drones and launcher chains in these caverns creates an efficient pipeline back to the surface.

The lava chambers are particularly interesting because they contain a button-activated portal system that teleports lava between locations. Community reports indicate this functions as an infinite lava source, which is critical for sustained burning operations. The puzzle involves toggling gates to direct lava flow, then building on yellow-marked squares to create permanent pathways.

Resource Distribution Across Sandustry Biomes

Different biomes yield different resources, and understanding this distribution is essential for planning your factory's supply chain. The table below summarizes which resources are tied to specific biomes and how they factor into production.

A key takeaway from player experience: red sand can contaminate factory lines if not properly filtered. Players recommend installing filter walls that allow red sand to fall through while blocking it from main conveyor paths. This prevents the bouncy, unpredictable material from disrupting production chains.

Navigation and Portal Systems

One of the most transformative discoveries in Sandustry biomes is the portal network. Portals allow instant teleportation between the surface and underground, dramatically reducing travel time. Player experience reveals that portals are initially hidden — one was discovered behind what appeared to be a screaming-face glyph key in an underground chamber.

Portal Network Tips

• Surface portals connect directly to underground hubs, enabling round-trip teleportation
• Conveyor portals can be unlocked through research, potentially allowing automated resource transfer between zones
• Logic gate puzzles in certain caverns control lava portal systems — solving these creates infinite lava sources
• Recon drones can be unlocked to scout any biome without physically traveling there, making them invaluable for planning mining operations

The recon drone deserves special mention. Community reports indicate it can fly anywhere on the map, allowing players to check resource deposits, verify cavern connections, and spot unexplored areas from a bird's-eye view. This tool essentially eliminates the guesswork from biome exploration.

Augment System Found in Biomes

Scattered throughout the biomes are augment stations that grant permanent upgrades. Player experience shows these are unlocked by completing mini-puzzles and reaching hidden areas.

The triple burst augment is particularly game-changing for mining, as it triples rocket output and dramatically speeds up excavation across all Sandustry biomes.

Mining Strategies for Each Biome

Different biomes require different approaches. Here are actionable strategies based on community experience:

Soil Caverns:

• Deploy digger drones to automate mining over long periods
• Use launcher chains to move material vertically to the surface
• Install filters to separate red sand from standard soil

Lava Chambers:

• Solve the button puzzle to activate infinite lava portals
• Use lava sparingly — once material ignites, it burns indefinitely
• Avoid overloading cinder production; flame bubbles alone cannot sustain operations

Moon Crystal Caves:

• Use shovels and guns rather than rockets to avoid bouncing moon hop
• Isolate moon hop in dedicated storage to prevent contamination
• Prioritize moonstone collection for augment unlocks

Void Zones:

• Capture void grazers early to unlock conservatory content
• Harvest void creatures immediately when encountered
• Stockpile void pedals for future crafting recipes

Ice Mountains:

• Mine snow and ice for renewable water production
• Use melted snow to supplement or replace water pumps
• Explore hidden mountain passages for additional resources

FAQ

What are Sandustry biomes? Sandustry biomes are distinct map zones — both on the surface and underground — that contain unique resources, terrain types, and challenges. Examples include soil caverns, lava chambers, ice mountains, void zones, and moon crystal caves.

How many biomes are in Sandustry? Based on player experience, there are at least eight identifiable biome types, including surface sand zones, ice mountains, underground soil caverns, lava chambers, moon crystal caves, void zones, copper ore caverns, and puzzle rooms. The exact count may grow as the game continues development through Game Preview.

Are Sandustry biomes procedurally generated? Community reports suggest the map may use procedurally generated grid chunks, meaning biome layouts vary between playthroughs while core resource types remain consistent. However, this has not been officially confirmed by the developers at Lantto Games.

How do portals work between biomes? Portals allow instant teleportation between surface and underground locations. They are discovered through exploration, often hidden behind puzzles or glyph keys. Once activated, they provide fast travel and may eventually support automated resource transfer through conveyor portal research.