A hooded Canary in a narrow night street, a capsule glowing cold at their hip, something faint in the haze under the far lamp

HeatwaveHeatwave: The battle for cold

Your street. Tonight.

An audio horror game on your own streets. Earbuds in, half an hour, follow the sonar to cold seeds. Don’t get found.

iPhone · Free beta · 16+ · Switzerland & Netherlands first

Free. The TestFlight link appears right here. After that, one email per new build. Unsubscribe any time.

Cold open, 34 seconds, Rob on the radio

No one would have believed, in the first years of the twenty-first century, that this world was being watched, keenly and closely, from beneath the ice. That as we busied ourselves about our various concerns, the glaciers were slowly, surely, letting go of what they had held for ten thousand years. It came out of the meltwater in the summer of 2041. It burns. And it wants the one thing we have left. Cold.

Incoming · Rob · Ch 4Cold open · 2050

It came out of the meltwater.

Thirty-four seconds, with captions. Earbuds in.

0s
A Canary at the mouth of an underpass, something barely there in the lit opening at the far end

Always unseen

You will hear them before you see them.

Phone in your pocket, screen dark. Tap a word to hear it.

Built for the street

Dread, not danger.

  • You never have to run.Walk. Freeze when it is close. Running is never the answer it asks for.
  • Nothing on a road.Seeds, drops and planting zones are never placed on a street or a crossing.
  • Earbud out, game paused.Take one out and everything stops until you are ready.
  • No jump scares on screen.The screen stays dark. Everything happens in your ears.

Let’s take Marktgasse back.

The Operator

The hexagon map of Appenzell over its real streets. As you scroll, Marktgasse, Hauptgasse and the cell below turn green and Bahnhofstrasse lights faintly, fading; the rest stays warm in ember.

Hexagon by hexagon

Appenzell, tonight.

Every street is a sector. Walk it, plant it, and it turns green. Leave it, and it fades a day at a time.

  • Warm. Their ground. The next outing.
  • Green. Calmer, never safe.
  • ?A drop or a cold cache, at its real spot.

The same grid covers Utrecht, Bern and your street.

Over the radio

One voice keeps you moving.

Your Operator knows your callsign. Calm when it is quiet, whispering when something is close, shouting when it is on you. No numbers in your ear, no lectures.

The Canopy

Rob and Ellen are Operators of the Canopy, the people taking the towns back. Growers keep the last seeds alive and prepare the planting zones. Canaries like you carry them out, hold the ground and plant. The Operators guide you and report what happens to every sector.

“The growers kept these seeds alive. We’re getting them back into the ground.”

RobCanopy Operator. Former mountain rescuer.Spent years bringing frightened people down off the mountain in the dark. On the radio he is economical: few words, the right ones, and he keeps a team together when it wants to scatter.Into your pack. Keep it.
EllenCanopy Operator. Glaciologist who saw the Thaw coming.She measured the ice for years and warned anyone who would listen. Nobody did. She takes no pleasure in having been right. Observant and precise, she hears what is behind you before you do.Rare. A month’s worth of green. Keep close.

They feel cold the way we hear a scream.

The Operator

A gloved hand holding a frosted capsule with seeds inside, an ember-lit alley behind

Find. Survive. Plant.

Carry the cold.

Rarer seeds buy more green and bring a harder hunt. Every type you find earns a card for good.

SEED · RARE · ABOUT 1 IN 4 SEEDS

Stone pine

30days
Stone pine capsule
Plant+30 days

Turns a sector green for 30 more days. Everyone’s seeds add to the same score.

Cold

Kept colder. They will come harder for this.

“Cones from the last high forest. Slow to grow, and it outlives everyone.”

HEATWAVE · THE BATTLE FOR COLD#007

SEED · LEGENDARY · ABOUT 1 IN 50 SEEDS

Mother seed

365days
Mother seed capsule
Plant+365 days

Turns a sector green for 365 more days. Everyone’s seeds add to the same score.

Cold

Kept coldest. They will feel it from far away.

“The one they said was gone. The network will remember who found it.”

HEATWAVE · THE BATTLE FOR COLD#006

SEED · COMMON · MOST SEEDS

Mountain rye

3days
Mountain rye capsule
Plant+3 days

Turns a sector green for 3 more days. Everyone’s seeds add to the same score.

Cold

Kept just cold enough.

“Hardy seeds that still grow on thin alpine soil.”

HEATWAVE · THE BATTLE FOR COLD#001

SEED · RARE · NOT FOUND YET

???

30days
Plant+30 days

Turns a sector green for 30 more days. Everyone’s seeds add to the same score.

Cold

Kept colder. They will come harder for this.

“Its seeds wait somewhere out there. Follow the sound.”

HEATWAVE · THE BATTLE FOR COLD#004
Four Canaries on a ridge at night, their capsules glowing cold blue, a town glowing ember below

Better with friends

Alone, or with your Flock.

Solo is the whole game. Friends on the same streets add to the same sectors, and every walk ends with a short movie you can send.

Play tonight

What you need

  • iPhoneiOS 17 or later.
  • EarbudsStereo. Best with AirPods. Left and right matter.
  • 16+Horror, played outdoors at night.
  • BetaEarly build, rough edges. Your feedback goes straight into the next one. First on Swiss and Dutch streets.
The same night street, empty now, a capsule's cold light the only thing moving

Your street is still warm.

Every night nobody walks it, it stays theirs. The beta is open now.

Free. The TestFlight link appears right here. After that, one email per new build. Unsubscribe any time.

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