SUBSTELLAR

+ A world beneath your world

Beneath
the familiar.

The Earth has more to tell.
Follow the stone. Go deeper.

Begin the descent
01 / SURFACEForest · Stone · Water
SCROLL TO DISCOVER

The shape of Surface

Read the stone.
Find your way.

Forests, rivers and familiar ground. The beginning of every journey below.

Foundation
Grass · dirt · familiar stone
Passage
Woodland approaches · rivers · cave entrances
Minerals
No chart minerals.
Abstract Surface specimen showing dense surrounding stone and its enclosed routes.
01 / SURFACESurface geology

+ 02 / The familiar, fading

Shallows.

Daylight gives way.
Stone carries on.

Aquifers, ravines and familiar minerals lead away from the surface. Find a dry ledge beside the water and follow the darker stone below.

Explore the stone
SHALLOWSTHE FAMILIAR, FADING

The world you recognize

A world within the stone.

02 — SHALLOWS
A dry ledge skirts clear underground water, with familiar ore blocks visible along the route.
01 / Shallows

The aquifer ledge

A dry ledge skirts clear underground water, with familiar ore blocks visible along the route.

Calcite terraces and pointed dripstone mark a dry chamber with a darker route below.
02 / Shallows

The lower stone chamber

Calcite terraces and pointed dripstone mark a dry chamber with a darker route below.

A familiar ravine carries daylight from a forest entrance down toward darker stone.
03 / Shallows

Where daylight fades

A familiar ravine carries daylight from a forest entrance down toward darker stone.

The shape of Shallows

Read the stone.
Find your way.

Aquifers, ravines and familiar minerals lead away from the surface. Find a dry ledge beside the water and follow the darker stone below.

Foundation
Stone · deepslate
Passage
Ravines · aquifers · familiar caves
Minerals
Vanilla ranges, unchanged: coal, copper, iron, gold, redstone, lapis, diamond near the old floor, emerald in mountains.
Abstract Shallows specimen showing dense surrounding stone and its enclosed routes.
02 / SHALLOWSShallows geology
Under the familiar surface

Daylight thins.
The world opens inward.

Through the Shallows, toward the Deepwilds

+ 03 / The first deep world

Deepwilds.

Rivers find their way.
So will you.

Beyond familiar stone, tuff halls unfold into terraces, wandering waterways and sheltered pockets of green. Follow a shelf. Round a pillar. Find another way through.

Explore three biomes
DEEPWILDS03 / RIVER HALLS

One depth. Three ways to wander.

A world within the stone.

03 — DEEPWILDS
Tiered tuff shelves, a supported natural arch and pale seams in a dry cavern.
01 / Fracture Halls

Stone, split into possibility.

Broad shelves turn around tuff pillars. Pale seams trace the walls; a dry route disappears into the next hall.

Clear river beside stepped tuff banks, a low arch and a dry ledge route.
02 / River Lowlands

Follow the water. Find your way.

A river bends beneath low arches, past shallow steps and stone islands. The bank offers another way into the deep.

A sheltered azalea and moss grove on rooted terraces beside a river.
03 / The Grove

A little life, sheltered in stone.

Moss, azalea and rooted terraces gather in a contained pocket of green, where the grove meets the river.

The shape of the deep

Solid ground.
Endless possibility.

Not an empty world beneath the world. A body of stone, threaded with routes, supported by pillars and carved by water.

Foundation
Tuff · local pale seams
Passage
Shelves · halls · river banks
Minerals
Tin, zinc, silver, sulfur, apatite
An abstract tuff cutaway with enclosed river passages, substantial pillars, stepped shelves and a small grove.
03 / DEEPWILDSDeepwilds geology

A threshold in stone

Light band.

A pale solid threshold. Routes can align above and below; the stone still has to be mined.

Solid band · no chart minerals

+ 04 / A closer world

Underreach.

Still water.
Unquiet stone.

Dripstone columns divide the galleries. Still lakes hold their reflections. Shore routes turn into branching passages, with salt and small crude oil pockets beside the water.

Explore the stone
UNDERREACHA CLOSER WORLD

One depth. Three ways to wander.

A world within the stone.

04 — UNDERREACH
An intimate dry gallery where the player walks around thick dripstone columns and beside clusters, choosing a lit shelf or darker side opening.
01 / Underreach

Drip Galleries

An intimate dry gallery where the player walks around thick dripstone columns and beside clusters, choosing a lit shelf or darker side opening.

An enclosed stepped lake basin with pillars, shoreline routes and a distant dry opening; clear shallows and reflective deep water reinforce its distinct geology.
02 / Underreach

Still Lakes

An enclosed stepped lake basin with pillars, shoreline routes and a distant dry opening; clear shallows and reflective deep water reinforce its distinct geology.

Three natural route choices at a biome contact, with a small connected lake edge, discreet confined crude-oil pocket and salt-bearing shore blocks.
03 / Underreach

The Branching Maze

Three natural route choices at a biome contact, with a small connected lake edge, discreet confined crude-oil pocket and salt-bearing shore blocks.

The shape of Underreach

Read the stone.
Find your way.

Dripstone columns divide the galleries. Still lakes hold their reflections. Shore routes turn into branching passages, with salt and small crude oil pockets beside the water.

Foundation
Dripstone · local calcite
Passage
Columns · lakes · branching dry routes
Minerals
Lead, nickel, bauxite, fluorite, salt, certus quartz, niter. Certus quartz generates as a mineral in this depth, not as a surface meteor. Salt is a mineral beside the lakes.
Abstract Underreach specimen showing dense surrounding stone and its enclosed routes.
04 / UNDERREACHUnderreach geology

A threshold in stone

Dark band.

Obsidian and crying obsidian mark the next descent. Passage stops at the band.

Solid band · no chart minerals

+ 05 / The deep grows quiet

Abyss.

Less sky.
More possibility.

Deepslate closes around tighter forks, low vaults and sheltered shelves. A local vent warms one turn; a cool cleft leads into another.

Explore the stone
ABYSSTHE DEEP GROWS QUIET

One depth. Three ways to wander.

A world within the stone.

05 — ABYSS
A close first-person dry tunnel fork whose cool and warm branches make route choice legible.
01 / Abyss

Close Warren

A close first-person dry tunnel fork whose cool and warm branches make route choice legible.

A compact magma spring contained by blackstone and basalt, with a dry route passing the heat source.
02 / Abyss

Magma Vent

A compact magma spring contained by blackstone and basalt, with a dry route passing the heat source.

A broad but low enclosed vault with natural stone piers, repeated sheltered openings, dry layered routes and subtle embedded ores.
03 / Abyss

Quiet Vaults

A broad but low enclosed vault with natural stone piers, repeated sheltered openings, dry layered routes and subtle embedded ores.

The shape of Abyss

Read the stone.
Find your way.

Deepslate closes around tighter forks, low vaults and sheltered shelves. A local vent warms one turn; a cool cleft leads into another.

Foundation
Deepslate · localized basalt
Passage
Forks · low vaults · natural piers
Minerals
Osmium, uranium, cinnabar.
Abstract Abyss specimen showing dense surrounding stone and its enclosed routes.
05 / ABYSSAbyss geology

A threshold in stone

Magma band.

A solid localized heat threshold beneath the upper depths. No lava sea.

Solid band · no chart minerals

+ 06 / A fault through immense stone

Mantle.

Follow the seam.
Keep your footing.

Basalt surrounds a narrow winding fault. Close shoulders and folded ribs make every ledge a route. Cinder pockets are small and local.

Explore the stone
MANTLEA FAULT THROUGH IMMENSE STONE

One depth. Three ways to wander.

A world within the stone.

06 — MANTLE
A tall but very narrow winding fault with dense basalt walls and traversable mid-level ledges.
01 / Mantle

Basalt Seams

A tall but very narrow winding fault with dense basalt walls and traversable mid-level ledges.

Player-scale ledge travel past a tiny cinder recess below footing, with low roof and close basalt shoulders.
02 / Mantle

Cinder Pockets

Player-scale ledge travel past a tiny cinder recess below footing, with low roof and close basalt shoulders.

A natural compact enclosure of compressed stepped basalt ribs and folds, reached by tight routes around solid stone.
03 / Mantle

Closed Foundry

A natural compact enclosure of compressed stepped basalt ribs and folds, reached by tight routes around solid stone.

The shape of Mantle

Immense stone.
A narrow way through.

Basalt surrounds a narrow winding fault. Close shoulders and folded ribs make every ledge a route. Cinder pockets are small and local.

Foundation
Basalt
Passage
Narrow faults · cinder bypasses · rooted ribs
Minerals
No chart minerals.
Abstract Mantle specimen showing dense surrounding stone and its enclosed routes.
06 / MANTLEMantle geology

+ 07 / The deepest quiet

Core.

Pale stone.
A rare way onward.

Dense quartz buttresses wrap compact cracks and offset galleries. Step into the narrow opening. Draconium belongs to this stone alone.

Explore the stone
CORETHE DEEPEST QUIET

One depth. Three ways to wander.

Small openings. Deep possibility.

07 — CORE
Close player-height exploration: dry footing, a one-block step, a low enclosing ceiling and a narrow onward glimpse beyond pale stone.
01 / Core

Bright Cracks

Close player-height exploration: dry footing, a one-block step, a low enclosing ceiling and a narrow onward glimpse beyond pale stone.

A quiet compact enclosure wraps a substantial irregular stepped quartz mass, with a slender dry shelf and narrow onward crack.
02 / Core

The Still Heart

A quiet compact enclosure wraps a substantial irregular stepped quartz mass, with a slender dry shelf and narrow onward crack.

Two rare narrow galleries wind around dense quartz buttresses, using stepped shelves and offset openings to reveal depth without a giant void.
03 / Core

Pale Galleries

Two rare narrow galleries wind around dense quartz buttresses, using stepped shelves and offset openings to reveal depth without a giant void.

The shape of Core

A body of quartz.
A thread of passage.

Dense quartz buttresses wrap compact cracks and offset galleries. Step into the narrow opening. Draconium belongs to this stone alone.

Foundation
Smooth quartz
Passage
Rare cracks · offset galleries · rooted buttresses
Minerals
Draconium. Only in the smooth quartz. None in the Mantle.
Abstract Core specimen showing dense surrounding stone and its enclosed routes.
07 / CORECore geology

The foundation beneath it all

Bedrock.

The bottom of the Earth column.

Working column: Y=-352 through Y=319 · Sea level 63

From surface to foundation

One Earth.
Many worlds within.

Solid bands hold the layers apart. Water follows the upper depths. Local heat gives way to basalt; the Core keeps its pale stone.

Explore every scene ↗
Illustrated geological columnSurface above Shallows, broad Deepwilds caves, an unbroken light band, Underreach lakes, an unbroken dark band, tighter dry Abyss caves with localized vent lava, the solid magma threshold, narrow Mantle and Core cracks, and bedrock. Openings align across bands but bands remain stone that must be mined.
Original illustrated cutaway. Geometry is schematic; bands remain solid.

The descent continues

There is always
another layer.