An adventure game for ages 6 to 9

A summer at Grandma and Grandpa’s, by the sea. A grey mist has stolen the colours and tangled the numbers. Only you can see what it has mixed up.

  • Ages 6 to 9
  • Tablet, computer, phone
  • No ads, no in-app purchases

The story

  1. 1 / 5

    The holidays begin

    This summer, you are staying in Ker Lyman, at Grandma and Grandpa’s. A granite cottage, blue shutters, hydrangeas, and the sea at the end of the garden.

  2. 2 / 5

    The lighthouse has gone dark

    Grandpa used to keep it. Since he retired, the lamp no longer turns. And from the open sea, a grey mist is drifting towards the coast.

  3. 3 / 5

    Everything gets tangled

    Wherever it goes, colours fade, numbers get muddled and the letters on the signs swap places.

  4. 4 / 5

    “Just Breton weather!”

    The grown-ups shrug. They don’t see a thing. They are kind, just a little absent-minded.

  5. 5 / 5

    But you can see it

    You notice what the mist has mixed up, and you know how to put it right. Every success brings a little colour back to the world.

In the game

The summer album.

Real pictures of the game, taken while playing episode 1. Nothing retouched.

Learning by playing

No worksheets here.

You count the eggs because Grandma is making crêpes, and you read the clock because the tide won’t wait. Every challenge has a reason to exist in the world.

  1. One world, three levels

    The game starts at the level you choose, for ages 6 to 9, then adapts skill by skill to keep success around 80%: hard enough to progress, easy enough to stay motivated.

  2. Never a game over

    One mistake, and the instruction is said another way. Two, and a visual aid appears. Three, and Grandpa shows how it’s done. The child always makes the final move.

  3. Handle first, then abstract

    First you count eggs you can see, then boxes of ten, then the number alone. That is the approach of the 2025 French curriculum.

Try the egg quest

GrandmaI need 10 eggs for the crêpes. You found 8. How many are missing?

  1. Say again
  2. Show
  3. Guide

Between two quests

Holiday life.

No challenge, no timer: just the joy of being there. And nothing is lost while you are away.

Puppy or kitten?

The Misted

Nobody gets hurt: you chase the mist away.

Gulls, crabs, rabbits: the local animals are covered in grey mist. Battles are turn-based, and the challenges only use what the child already masters.

  • Right and in time

    Élan: a powerful attack, and the Élan gauge fills up.

  • Right, but a bit slow

    A normal attack. Nothing is lost.

  • A mistake

    A normal attack too, and the right answer is shown.

  • Élan at full

    The Lighthouse Beam clears all the mist at once.

Free the gull

Misted gull

Mist
Élan

What is 4 + 7?

The timer adapts to the child, and parents can turn it off.

Ten episodes, a whole summer

From Grandma’s house to the island offshore.

From mid-July to the end of August, your child explores a land inspired by the coast of Ploemeur, in Brittany. Each episode has its subject, its places, its boss, and its share of the mystery: where does the mist come from?

Map of the Ker Lyman countryKer LymanLocmelerPorz-AvelEnez VeurN12345678910

Eight shells, eight verses

Each boss you free leaves a shell engraved with a verse. The last verse will be written by your child.

  1. Episode 1Free

    The first days in Ker Lyman

    Unpack your suitcase, find the eggs for the crêpes, sow Grandpa’s vegetable patch, adopt a puppy or a kitten… and relight the dark lighthouse.

    Places
    The house, the coves, the farm, the moor, the lighthouse
    Learning
    Numbers, reading
    Boss
    No boss: a lighthouse to relight
    Unlocks
    Your companion, the explorer’s notebook
  2. Episode 2

    The village of Locmeler

    Cycle to the village, where the baker can’t make her sums add up. On the harbour, a huge grey crab has settled on Yann’s lobster pots.

    Places
    The square, the bakery, the library, the harbour
    Learning
    Money, weights, first fractions, alphabetical order
    Boss
    The Great Grey Crab
    Unlocks
    The bike, the first battles
  3. Episode 3

    The Korrigan’s letters

    Every night, shop signs lose letters. A prankster korrigan leaps from roof to roof with a bag of stolen letters. What is he trying to write?

    Places
    The wash house, the chapel, the standing stone
    Learning
    Spelling
    Boss
    The Prankster Korrigan
    Unlocks
    A holiday friend, the chapel fair
  4. Episode 4

    The fort on the islet

    Three days of spring tides: the fort can only be reached on foot around low water. Watch in hand, you explore the ramparts. And something is stirring in the cistern.

    Places
    The foreshore, the fort on its rock
    Learning
    Time and durations, lengths, geometry
    Boss
    The Old Blue Lobster
    Unlocks
    The watch, the kite, the spyglass
  5. Episode 5

    Grandma’s boat

    Grandma takes her boat out of the shed. Mackerel fishing, the cormorant cave, and an old wreck where an octopus jumbles the words of sentences.

    Places
    The coast seen from the sea, the cormorant cave, the wreck
    Learning
    Grammar, compass points
    Boss
    The Sentence Octopus
    Unlocks
    The boat, line fishing
  6. Episode 6

    The pond in the dunes

    The big bird count turns into a puzzle, and they say the White Lady haunts the old farm. Then comes the first night, under the shooting stars.

    Places
    The pond, the dunes, the bird reserve
    Learning
    Tables and charts, reading for information, symmetry
    Boss
    The White Lady
    Unlocks
    The binoculars, the first night
  7. Episode 7

    The mill on the river

    The mill has stopped turning: no flour, no crêpes! Along the river, otters, salmon, and a coypu who is far too greedy.

    Places
    The valley, the river, the mill
    Learning
    Capacity, weights, sharing
    Boss
    The Grumpy Coypu
    Unlocks
    Flour, buckwheat galettes
  8. Episode 8

    The town in festival

    The great Celtic festival of the summer: pipe bands, fest-noz, the dawn fish auction. But the mist has upset every clock, and the boat to the island no longer sails.

    Places
    Porz-Avel: the harbour, the quays, the festival stage
    Learning
    Timetables, large numbers, friezes, rhythms
    Boss
    The Clockmaker Gull
    Unlocks
    The festival costume, music and dancing
  9. Episode 9

    The island offshore

    Dolphins in the wake, then the island where Grandpa spent his childhood summers. Here, the mist is thicker than anywhere else.

    Places
    Enez Veur: the tuna boat harbour, the great lighthouse, the chasm
    Learning
    Two-step problems, times tables, fractions
    Boss
    The Great Grey Seal
    Unlocks
    The island ferry, the great lighthouse
  10. Episode 10

    The Morgane’s song

    At the highest tide of the summer, the sea uncovers a cave. Deep inside lies the answer to the mystery of the mist. Then it is time to pack your suitcase.

    Places
    The Breath cave, then home to Ker Lyman
    Learning
    A review of everything, first free writing
    Boss
    The heart of the mist
    Unlocks
    The end of the story

For parents

A game that knows when to stop.

We designed Ker Lyman the way we would like our own children’s games to be designed: no traps, no pressure, and a real end to the day.

A natural end to the day

A game day lasts 15 to 20 minutes. At sunset, Grandma calls everyone in for dinner and the game saves with a little recap. It is the right moment to put the screen away, without frustration.

What you will never find

  • Daily streaks to keep up
  • Rewards that expire
  • Loot boxes and lucky draws
  • Advertising
  • In-game purchases
  • Third-party trackers

If your child takes a three-week break, their puppy is not hungry: it is simply delighted to see them again. The vegetable patch has waited patiently.

Data stays at home

Your child’s profile stays on the device by default, with no child account. Cloud saves go through a parent account, with your explicit consent.

Built on the 2025 curriculum

The yearly milestones of the French “cycle 2” (ages 6 to 9): handle then abstract, early fractions, more mental maths, money from age 7, and spaced repetition to anchor what has been learned.

  • Numbers
  • Mental maths
  • Fractions
  • Money
  • Measures
  • Time
  • Geometry
  • Reading
  • Spelling
  • Grammar

Made for young readers

The Andika font, optional school cursive, adjustable text size, high contrast. Instructions and dialogue are always written large, and no information is carried by colour alone.

Grandma is making crêpes for tea.

The parent area

Protected by a small grown-up sum, it shows the skills learned and the time played. You set the session length and the battle timer, and you can target a school topic.

What is 7 × 8?

This weekthe 3 times table

The sky of knowledge

Each skill is a star that lights up above the lighthouse. No marks, no percentages.

Play

Anywhere, even offline.

Ker Lyman runs right in the browser, on tablets, computers and phones. Nothing to download from a store.

  • Tablet

    Tap to move, a single action button.

  • Computer

    Keyboard, mouse or gamepad.

  • Phone

    The same controls, a larger interface.

  • Offline

    Add the game to your home screen and it plays without a connection: in the car, on the train or at the campsite.

To get started

Episode 1, free

Discover Ker Lyman as a family, with no commitment.

  • 2 to 3 hours of play
  • 8 missions and side quests
  • All 3 levels, ages 6 to 9
  • No account, no credit card
Play now

The full game

One purchase, forever

No subscription, no in-game purchases, and nothing that pushes children to spend.

  • All 10 episodes, the whole summer
  • All 3 school levels
  • Several profiles for brothers and sisters
  • Saves synced across your devices

Price announced at launch

Questions

What parents ask.

Is the game in English?

Not yet. Ker Lyman is currently in French and follows the French school curriculum for ages 6 to 9. It suits French-speaking families and children learning in French.

What age is it for?

Ages 6 to 9. You choose the starting level, then the game adapts on its own, skill by skill.

My child can’t read very well yet. Can they play?

Yes, with a little help. All text is large and set in the Andika font, and the game adapts to their reading level. Younger children happily play next to an adult who reads the instructions with them.

Do I need to install anything?

No. The game opens in the browser. You can add it to your home screen to play offline.

How long will my child play?

A game day lasts 15 to 20 minutes and ends at sunset. In the parent area, you can set a maximum time, or make the end of the day mandatory.

Are the battles violent?

No. The Misted are animals covered in mist: you don’t hurt them, you chase the mist away and they leave in full colour. The battle timer adapts to the child and can be turned off.

What data is collected?

None by default: the profile stays on the device, with no child account and no trackers. Syncing across devices goes through a parent account and your explicit consent.

How much does it cost?

Episode 1 is free, with no account or credit card. The full game is a one-time purchase: all 10 episodes, all 3 levels, several profiles and syncing. No subscription.

The sun is setting over Ker Lyman.

Grandma is calling everyone in for dinner. Tomorrow, the mist will have pulled back a little further.

Play episode 1