Undervein
Released 23 October 2026 · PC · Casual, Indie, Simulation
Deep under the mountain there is a seam that never runs dry, a crew of dwarves who will mine it while you sleep, and a door covered in runes that nobody has opened. Click. Build. Descend. And be ready when the mountain's wrath wakes.
Story
The old miners never came back up. They left their lanterns burning, their machines still warm, and a seam of ore that hums back when you strike it. Somewhere far below, past the last of the gold, an ancient door is waiting. Pick up the pickaxe where they dropped it. Dig. ONE MORE SWING It starts with a single pickaxe and a sound you will learn to love: that small, bright clink when the vein gives way. Soon ten kinds of hands are digging for you. Apprentices with shaky swings. Mine carts. Steam borers. And somewhere near the bottom of the list, a Quantum Drill that nobody quite understands. The numbers climb, the tunnel sinks. Topsoil, coal, fossils, gold, crystal, lava. And under all of it, The Portal. WHAT THE OLD MINERS LEFT BEHIND Five machines sleep in the dark. A seed that sprouts from nothing and strikes on its own. A lamp that turns the shaft to daylight. A sonar that listens for the vein's pulse. A dwarf who knows every rock by name. And a key to the mountain's heart. Feed them Ancient Ore and they wake up and work. Then there is Fanor. Hooded, patient, smelling faintly of lamp oil. He will not take your gold, only Ancient and Cursed Ore, and his best deals...
Gameplay
The old miners never came back up. They left their lanterns burning, their machines still warm, and a seam of ore that hums back when you strike it. Somewhere far below, past the last of the gold, an ancient door is waiting. Pick up the pickaxe where they dropped it. Dig. ONE MORE SWING It starts with a single pickaxe and a sound you will learn to love: that small, bright clink when the vein gives way. Soon ten kinds of hands are digging for you. Apprentices with shaky swings. Mine carts. Steam borers. And somewhere near the bottom of the list, a Quantum Drill that nobody quite understands. The numbers climb, the tunnel sinks. Topsoil, coal, fossils, gold, crystal, lava. And under all of it, The Portal. WHAT THE OLD MINERS LEFT BEHIND Five machines sleep in the dark. A seed that sprouts from nothing and strikes on its own. A lamp that turns the shaft to daylight. A sonar that listens for the vein's pulse. A dwarf who knows every rock by name. And a key to the mountain's heart. Feed them Ancient Ore and they wake up and work. Then there is Fanor. Hooded, patient, smelling faintly of lamp oil. He will not take your gold, only Ancient and Cursed Ore, and his best deals come sealed in stone. You will not know what is inside until you break it open. That is rather the point. A DOOR THAT KNOCKS BACK At the edge of the cave stands an arch older than the mountain's name....
Features
- Single-player
- Steam Achievements
- Mouse Only Option
- #category_playable_at_your_own_pace
- Playable without Timed Input
- Steam Cloud
- Family Sharing
Release details
Undervein is a Casual, Indie and Simulation game by Tanur Studios. Undervein came out on Friday, 23 October 2026 on PC. This date comes from Steam and was last checked on 22 October 2026.
Frequently asked questions
When did Undervein come out?
Undervein came out on 23 October 2026.
Which platforms is Undervein on?
Undervein is on PC.
Who makes Undervein?
Undervein is developed by Tanur Studios.
What kind of game is Undervein?
Undervein is a game of these genres: Casual, Indie and Simulation.