A cozy mining adventure for iPhone

Dig deep.Light the dark.

A tiny robot, a lamp and a drill. Tunnel beneath your workshop into glowing caverns, carry treasure home, build your base and face the guardians of the deep.

Chapter 1 free
No ads
No timers or energy
Plays offline

A cutaway of the world: the robot drills through soil beneath its lantern-lit workshop, with gold and copper ore around it and glowing crystal caverns far below.

In the game

Every dig takes you somewhere new

The workshop grown into a survey headquarters, with lights strung between new buildings. — Grow your workshop into a base

The robot in a dark tunnel, its headlamp lighting a seam of copper ore. — Dig anywhere, in real time

The robot arriving in the violet Crystal Cathedral. — Discover hidden caverns

A boss title card: The Rootmaw, a giant root worm. — Face the guardians

The workshop upgrade screen, with the lamp upgrade pinned as a goal. — Upgrade your digger

Aiming a dynamite throw across a torch-lit cave, the arc ending in a blast marker. — Blast through with dynamite

Why you'll keep digging

Small robot. Big world.

Made for one thumb on each side of your phone: a stick to steer and aim, a button to drill.

Dig anywhere

Tunnel through soil, clay, stone and ember rock. Every block breaks, and the world remembers every tunnel you make.

Light the dark

Torches push back the darkness and keep creatures at bay. Throw flares into the deep, drop a rope and climb back home.

Upgrade everything

A faster drill, a brighter lamp, a bigger bag, a jetpack and a thruster dash. Each one changes how you explore.

Build your base

Turn empty plots into a refinery, a supply depot, a survey tower, a teleporter and a lift, then watch it grow into a headquarters.

Face the guardians

Three bosses guard the way down. Learn their moves, find the opening and claim what they guard.

A world that lives

Day and night, rain and four seasons above; echo stones, abandoned camps and hidden rooms below.

How deep will you go?

Five regions, each stranger than the last

From the roots under your workshop to the ember-lit depths and the ancient Deep Window at the bottom of the world.

The Root Cathedral: giant roots arching over a cavern. — Root Hollows
Where every root meets in one great hall, and something wakes in the walls.

The Stillwater: a glowing underground lake with a waterfall. — Lumen Grotto
Glowing caverns and a lake that never ripples.

The Crystal Cathedral: towering violet crystals. — Amethyst Deep
The singing heart of the deep, ruled by the Crystal Matriarch.

The Deep Window: an ancient hall at the bottom of the world. — The Deep Window
Past the Ember Depths, the surveyors' last secret waits.

Fair to play

Pay once, if you want. Never pushed.

Chapter 1 is free, from your first dig to the first boss. If you love it, one purchase opens the full expedition: three more regions, two more bosses and the ending.

Optional Sparks can buy gear and buildings outright; everything can also be earned with coins and ore.

No ads. Ever.Nothing between you and the dig.
No timers, no energyPlay as long as you like, whenever you like.
Price shown up frontYou see what the expedition costs before you build toward it.
Yours to keepRestorable, and carried into every new game.
No account, plays offlineNo sign-up, no tracking.

The deep is waiting

Grab your lamp. Your first dig is free.