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Mühlenarchiv
The archive of unfinished games

Mühlenarchiv

German for “the morris archive”. Nine men’s morris is more than one game – it’s a whole family. Seven of its members, opponents with character and an archive full of games that break off halfway. You play them to the end.

  • No ads
  • No subscription
  • No account
  • Offline

Coming soon to Google PlayMühlenarchiv is still in closed testing. This page describes the test version; things may still change before launch.

For Android 8 or later. In class, students vote in the browser – on any device with a browser, no app needed.


How it works

In the basement of an old city library, Ilse collects morris boards: scratched roof tiles, photos taken in the sand, notches in a tavern board, tournament records. Many games break off halfway.

  1. Find

    An unfinished game

    Every find is an interrupted position with a task, such as “White to move wins a stone in two moves”. More than 130 finds in seven boxes, each with exactly one solution – proven by the program, not guessed.

  2. Trail

    Follow Z.

    Between the finds, a mysterious “Z.” keeps turning up. The more boxes you solve, the closer you get to the story.

  3. Game

    Play for yourself

    Against characters with their own style, with two players on one device or by message over any messenger. Plus a new daily find, the same for everyone – no streaks, no pressure.

Seven variants, documented not smoothed over

Every variant shows its origin and source in the app. Whether you may fly with three stones is disputed in the sources – you decide with a setting.

  • Nine men’s morrisEurope
  • Six men’s morrisEurope, Middle Ages
  • Twelve men’s morrisEurope, North America
  • Three men’s morrisEurope, Asia, antiquity
  • Lasker morrisGermany, 1931
  • MorabarabaSouthern Africa
  • AchiGhana
Opponents

Opponents with character

Instead of “easy, medium, hard”: Hedwig the innkeeper hems you in, Anton the forester captures wherever he can, Marlene the cantor builds double mills. In three men’s morris and Achi, the Unbeatable awaits – it knows every position.

Way to play

Topsy-turvy

If you can close a mill, you must – and that helps your opponent. First down to two stones wins.

Way to play

Secret line

Each side secretly picks a line. Close yours – or guess your opponent’s before they do. Bluffing encouraged.

Workshop

Morris machine

Build robots from rule cards, put them in order and watch which rule decides each move – with a tournament against the characters. A way into algorithms, not a coding course and not AI: the robot learns nothing, it does what the cards say.

Campaign

Tavern evenings

Ten evenings at Z.’s old board. Whoever wins leaves a mark – a point breaks off, a connection cracks, a diagonal is carved in. The board remembers.

Campaign

Z.’s round trip

Seven visits on Z.’s old routes, each harder than the last, with three candles and a talisman before every visit. The trip ends where it began: back in the archive.

Screenshots

  • Home screen: the daily find, the archive of unfinished games, games in progress and other ways to play.
    The whole morris family
  • Secret line against Hedwig the innkeeper: one line on the board is marked, with a button to confirm it below.
    Pick your line in secret
  • Tavern evenings: a board with broken-off points and a carved diagonal, with the chronicle of past evenings below.
    The board remembers
  • Daily find: an interrupted nine men’s morris position in which White is to move and wins a stone in two moves.
    An unfinished game every day
  • Z.’s round trip: choosing a talisman and the seven stops of the trip with candles.
    Seven visits, one talisman
  • Class vs computer: a QR code to join, the board and a countdown for the vote.
    The whole class votes
  • Morris machine: a robot playing against a character, with its rule cards and the card that decided the move below.
    Build a robot
  • A game of nine men’s morris against Hedwig the innkeeper, with buttons to take back a move, offer a draw, resign, and view rules and origin.
    Opponents with character

Who is it for?

Morris players

You know nine men’s morris and want more: twelve men’s morris, Morabaraba, Lasker morris – and opponents who don’t all play the same.

Puzzle fans

A find every day, more than 130 in the archive, each with exactly one solution. Plus a story that moves on with the boxes.

The classroom

Class vs computer: the teacher’s device shows the board on the projector, everyone else votes on the next move in their browser – on the same Wi-Fi, no app, no account, no names. The Morris machine shows how an algorithm works through its rules.

Two players

On one device at the table or as a game by message: every move becomes a short code you send over your messenger. No account, no server.

What’s free – and what costs

No ads, no subscription. A single one-time purchase is planned.

Free
  • Nine men’s morris against every opponent – also as Topsy-turvy and Secret line
  • Two players on one device and by message
  • Morris machine and Class vs computer
  • Two boxes of finds and the daily find
  • The first tavern evening and the first visit of the round trip
One-time purchase

The full archive

$2.79

Every variant, every box of finds including Z.’s game, the Unbeatable, Tavern evenings and Z.’s round trip.

Planned price in the USA as of October 2026 (Germany: €2.99). The app has not been released yet; the price shown by Google Play at checkout is binding.

FAQ

When will Mühlenarchiv be released?

As soon as closed testing on Google Play is complete. There is no fixed date yet.

Do I need an internet connection?

No. Mühlenarchiv works offline. Only Class vs computer uses your own Wi-Fi so the class can vote – none of it leaves the Wi-Fi.

Is Mühlenarchiv available for iPhone?

The app is Android-only. In Class vs computer, though, any device with a browser can vote, iPhones included.

Does the app collect data?

No account, no ads, no data collection. In a game by message, you send your moves yourself through your messenger; nothing reaches us. The details are in the privacy policy (German).

I have a new phone. Is my purchase gone?

No. Purchases are tied to your Google account. On the new device, “Restore purchase” brings it back.

Which languages does the app support?

English and German.

A rule doesn’t match my source.

Write to us at kontakt@wunderkammer-apps.de – ideally including the source you know.

Case still open

Many games are waiting for their ending.

Mühlenarchiv is coming soon to Google Play – no ads, no subscription, no account.