← Tunnelborn · Crocfish
Tunnelborn key art — a helmeted miner with a pickaxe in a grid of rock, lava, gas and glowing ore, under the Tunnelborn logo

Dig for fossils under a volcano, one tile at a time. Nothing moves until you do — but then the lava creeps closer, your lamp burns lower, and something in the dark takes another step towards you…

⬇ Download full press kit (.zip) ⬇ Trailer (.mp4) ⬇ Screenshots only (.zip) ⬇ Loops only (.zip) Full kit ≈ 28 MB — key art & capsules, all screenshots, animated loops, trailer & fact sheet. Trailer ≈ 24 MB · Screenshots ≈ 1.9 MB · Loops ≈ 1.6 MB.

About the game

The cave doesn't chase you. It waits for your mistakes.

Time only moves when you do.

Every step, every dig, every coin you stop to pick up costs time — and everything down there gets that same time back. Lava spreads. Water pours into the hole you just opened. Something in the dark takes a step towards you.

Stop moving, and it all stops with you.

The lamp is running out of battery

Your helmet lamp is how you read the tunnels ahead. If you run out of battery, throw a flare into the pitch black below to see what is coming.

The world moves after you do

Lava creeps. Water pours downhill and puts it out. Gas sits quiet in the tunnels until something lights it, and then the whole pocket explodes one tile at a time. Boulders drop the moment you take the ground out from under them.

And the things living down here each have their own idea of where to be next. One wanders. One charges in a straight line. One is following you.

All of it waits for your move, and then takes its own.

Fill the museum to win

Ten fossils are buried down there, and you need every one of them to fill the museum and win the game. Spend what you carry out on better gear — a brighter lamp, a stronger pickaxe, a bigger bag — and go back down for the rest.

Nobody else is getting them out of the dark. You were born in these tunnels.

Dig deep. Predict every move. You are Tunnelborn!

Trailer

Reveal Trailer · 1:10 · 1920 × 1080, 60 fps · MP4, 24 MB — download or watch it on Steam.

Animated loops

Stop moving, and it all stops with you614 × 344 · 7.8 s · MP4 + WebM · 438 KB The lamp runs out of battery614 × 344 · 8.3 s · MP4 + WebM · 450 KB Lava takes the next tile614 × 344 · 4.7 s · MP4 + WebM · 523 KB A fossil goes into the museum614 × 344 · 4.5 s · MP4 + WebM · 235 KB

Click any loop to open the MP4, or grab them all — MP4 and WebM — in the loops .zip above. Free to embed, repost and re-encode.

Screenshots

A gas pocket explodes tile by tile beside the miner's lamp cone Digging a shaft past chests in the dark — “First bone logged. The children eat tonight.” Creatures lit in the dark with the battery almost empty — a new upgrade chest discovered Rubble pours down a dug-out shaft while spiders wait nearby The museum at the surface, revealing a recovered Triceratops skeleton

Click any shot for the full 1920×1080 image, or grab them all in the screenshots .zip above.

Key art & capsules

Tunnelborn key art — the miner framed by rock, lava, gas and glowing ore tiles Key art (main capsule)1232 × 706 · JPG Tunnelborn header capsule Header capsule920 × 430 · JPG Tunnelborn vertical capsule Vertical capsule748 × 896 · JPG Tunnelborn portrait library capsule Portrait capsule600 × 900 · JPG Tunnelborn small capsule Small capsule462 × 174 · JPG

Features

  • Time only moves when you do — every step, dig and pickup costs time, and everything down there spends exactly the same
  • Light you can run out of — the helmet lamp burns down as you go; flares are what is left when it does
  • Avoid dangerous creatures — they move in different patterns; learn their behaviour to survive
  • Lava, water, gas and falling rock — lava spreads, water puts it out, gas explodes when lit, and a falling rock can crush you — or a creature
  • Ten fossils and a museum to fill — carry them out, buy better gear, go back down for the rest
  • Every death replayed — the game replays your last seconds every time you die, so every death teaches you something

Availability & links

System requirements (PC)

Minimum

  • OS: Windows 10 (64-bit)
  • Processor: Intel Core i3-7100 or AMD FX-6300
  • Memory: 4 GB RAM
  • Graphics: Intel UHD Graphics 620 / NVIDIA GT 1030 / AMD Radeon R7
  • DirectX: Version 11
  • Storage: 500 MB available space

Played on the keyboard — arrow keys to move and dig, Return to use an item, Tab for the notebook.

Credits

Tunnelborn is a fully solo project — design, code, art and animation by Crocfish.

About Crocfish

Crocfish is a one-person game studio based in Estonia, making small, stubborn, retro-flavoured games for PC and mobile.

Permission to use Tunnelborn

You are granted the non-exclusive, royalty-free right to use, capture, record, stream and monetise video footage and screenshots of Tunnelborn, including on monetised channels. No further permission is required. If you need anything that isn't included here, just get in touch.