One Million Keys

One vault. One million keys. Only one opens the door.

Dig by hand, by shovel and by magnet, test key after key, melt the wrong ones into brass and buy upgrades until the mountain is gone.

Dig, test, melt the wrong ones into brass and buy upgrades until the mountain is gone.

How long will it take you to find yours?

Coming soon to Steam · Windows · macOS

1,000,000 keys in the vault

THE GAME

Locked in a vault. With a million keys.

You are locked in an underground bank vault from the 1960s with a single way out: a three-metre steel door with one lock. In the middle of the room sits a mountain of one million brass keys. Exactly one of them opens the door.

One Million Keys is a relaxing, slightly absurd first-person simulator about doing one thing really well: pick up keys, test keys, throw keys away. The mountain is real: every one of the 1,000,000 keys exists, sinks as you dig and disappears when you take it. Before long you have a shovel in hand, two funnels pulling keys onto a conveyor belt, an automatic tester slamming batches into the lock and a furnace turning every wrong key into brass. Brass buys upgrades. Upgrades empty the mountain faster. The mountain shrinks. The right key gets closer.

The clock only stops at the very end. What's behind the door is for you to find out.

The mountain of one million brass keys in the middle of the vault, seen from the entrance under warm lamps

TRAILER

One million keys in 25 seconds

25-second trailer: the vault door, the mountain of one million keys seen from the entrance, a hand digging, the shovel flinging keys, the door testing keys, funnels and a conveyor belt carrying keys to the tester, the X-ray revealing the right key and the door starting to open with warm light. It ends with the logo and “Coming soon on Steam”.

Sound on: every key has its own clink.

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HOW TO PLAY

Pick. Test. Melt. Buy.

Start with empty hands and room for ten keys. Pick one, walk to the door, turn it. Clank.

  1. Digging keys by hand in the brass mountain

    1 · Pick

    Dig into the pile by hand. Every key you take makes the mountain sink a little.

  2. The big round vault door with a key being tested in the lock

    2 · Test

    Turn them in the lock one by one. Clank. Wrong.

  3. 3 · Melt

    Every wrong key goes into the furnace and comes out as brass.

  4. The upgrade tree in an engineering-board style, with brass cards

    4 · Buy

    Brass buys the shovel. The shovel brings twenty keys at a time.

Every wrong key pays brass; brass pays for upgrades; upgrades bring wrong keys faster. The loop closes itself.

The shovel lifting a load of brass keys from the mountain

WHAT MAKES IT DIFFERENT

One million real keys

Each one is counted, lowers the pile when you dig and falls with physics when you throw it. No painted-on pile.

  • 1,000,000 keys, every one counted
  • 189 upgrades
  • 7 branches

A vault that looks like a vault: warm light from industrial lamps, dust in the air, brass that reflects, a steel door that groans. A real sound for every clink.

PROGRESSION

Build your key-testing factory

Hand, shovel, magnet, funnels with a conveyor belt and an automatic tester: 189 upgrades in 7 branches.

The upgrade tree in an engineering-board style, with brass cards
  • Hands

    More capacity, more reach, more speed.

  • Key ring

    Test several keys at once and throw the whole handful at the door.

  • Magnet and shovel

    Sweep chunks of the mountain in one go.

  • Automatic tester

    A machine next to the door that tests batches on its own.

  • Belts and funnel

    Pull keys from the mountain straight to the tester.

  • Scent

    Clues that close in on the right key.

  • Foundry

    More brass per wrong key.

Tools

  • Hand
  • Shovel
  • Magnet
  • Funnels
  • Conveyor belt
  • Automatic tester
  • Furnace
Two funnels pulling keys from the mountain onto a conveyor belt that leads to the automatic tester

Before long you have a shovel in hand, two funnels pulling keys onto a conveyor belt, an automatic tester slamming batches into the lock and a furnace turning every wrong key into brass.

The Scent X-ray revealing the right key in the middle of the mountain with a cyan glow
Hover over the image.

SCENT

The right key leaves clues

A beeping detector, a compass, a glow, a halo and an X-ray: the Scent closes in as the pile gets smaller.

  1. 1Beeping detector
  2. 2Compass
  3. 3Glow
  4. 4Halo
  5. 5X-ray

MODES

One run, about two hours. Then again.

  • Short goal, replayable

    Refill the vault and race your own time with everything you bought.

  • Purist mode

    Purist mode: hands only.

  • Play the same seed

    Every run has a seed code, like M65Z-7GZ. Send it to a friend and see who finds the key first.

  • Worldwide counter

    Every key tested by every player adds to the same number, shown in the main menu.

The vault door starting to open, with warm light spilling through the gap

And when it opens?

What's behind the door is for you to find out.

No spoilers here. Promise.

ACHIEVEMENTS

22 achievements. Seven of them you'll only find by playing.

Hidden achievement

+7 hidden achievements

Name, icon and description only show up once you unlock them.

SPECS

Will it run on your PC?

Platforms

Windows · macOS (Apple Silicon)

Controls

Keyboard and mouse or controller (Xbox and DualSense)

Mode

Single-player

Languages (8)

  • Português (Brasil)
  • English
  • Español
  • Deutsch
  • Français
  • Русский
  • 简体中文
  • 日本語

Requirements

Minimum
  • OS: Windows 10 64-bit
  • Processor: Intel Core i5-8400 or equivalent
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 1060 (6 GB) or equivalent, Vulkan 1.2
  • Storage: 2 GB available space
Recommended
  • OS: Windows 10/11 64-bit
  • Processor: Intel Core i5-10400 or equivalent
  • Memory: 16 GB RAM
  • Graphics: NVIDIA GeForce RTX 2060 or equivalent
  • Storage: 2 GB available space (SSD)

macOS: Apple Silicon (M1 or later), macOS 13+.

Provisional requirements. The Steam page is the final reference.

  • Lightweight
  • No microtransactions
  • No online requirement

Tags: Simulation · Casual · Relaxing · Incremental · First-Person · Funny · Physics · Atmospheric

FAQ

Frequently asked questions

What is One Million Keys?

A relaxing, slightly absurd first-person simulator. You are locked in a vault with one million brass keys and only one opens the door. Dig, test, melt the wrong ones into brass and buy upgrades until you find the right one.

When does it come out and how much will it cost?

Coming soon to Steam. Date and price have not been announced yet. Add it to your wishlist and Steam will let you know at launch.

How long is it?

A run takes about two hours. Then you can refill the vault and go again, faster, with everything you bought.

Do I really have to test a million keys?

Not necessarily: the right key can be anywhere in the mountain. And you won't be stuck with bare hands for long: shovel, magnet, funnels, conveyor belt, automatic tester and the Scent, which points at the right key.

Any microtransactions? Do I need to be online?

No and no. No microtransactions, no online requirement.

Can I play with a controller?

Yes: keyboard and mouse or controller (Xbox and DualSense).

Which languages?

English, Brazilian Portuguese, Spanish, German, French, Russian, Simplified Chinese and Japanese.

Which platforms?

Windows and macOS (Apple Silicon, macOS 13+).

Is it multiplayer?

It's a single-player game. But everyone adds to the same worldwide counter of tested keys, and you can send your seed code to a friend so they play the same vault.

Is there a challenge for those who want more?

There's Purist mode: no upgrades, hands only. And you can refill the vault and race your own time.

Does the game use AI?

The achievement icon motifs were generated with an image model (Gemini) and composited by hand. The code was written with AI assistance and reviewed by humans. The game does not use AI at runtime. Capsules, trailer, screenshots and sounds come from the game itself.

Who makes the game?

Indústria Nerd.

What's behind the door?

That's for you to find out.

1right key

Only one opens the door.

Wishlist One Million Keys and Steam will let you know when the vault opens.

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