Then it's you against the shadow. 66 days. Four attacks a day.
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Step one
Swear your vow
What do you want to change in the next 66 days? Write it down. Watch what the forge does with it.
Stays in your browser. Nothing is sent anywhere.
Step two
Pick your shadow
Every boss is a shadow of a broken promise. It takes the shape of what broke you. Tap one and listen.
In the app you name your own boss. The name never leaves your phone. The boss mocks your excuse, never you.
Step three
Hit it. Four times.
This is one day in Molten Vow. Four habits are your four attacks. Try it.
The Couch Beast20 000
Day
1/ 66
I · Departure
Departure
Resistance
Decision
Your hero grows with every chapter you win. Lose one, and it goes into the chronicle. Nothing is taken from you.
2121
21 days is a myth
In the best-known study on habit formation, it took participants a median of 66 days until a new behaviour ran on its own. Some needed 18 days, some more than 250.
That's why a chapter lasts 66 days. Long enough for a habit to stick. Short enough to see the end.
Lally et al. (2009), European Journal of Social Psychology.
Built differently
Most habit apps
Molten Vow
Endless streaks. One bad day, everything's gone.
66-day chapters. 3 out of 4 is enough. Nothing is taken away.
Cute pets or pixel art.
A comic world with bosses that talk back.
Account, cloud, tracking.
No account. Everything stays on your phone.
Five shops, four currencies.
One currency, earned only by attacking.
Built in public
The road
From the first idea to the release. Here's where Molten Vow stands today.
–Release
The idea
A habit app that fights back.
Development starts · Alpha
The first playable version.
Art and code
Hero, bosses, world – and the game logic behind them.
Closed beta
The first Founding MVPs play and give feedback.
The Last 66
Day 1 of the public challenge: 66 days until New Year's Eve, together.
Open beta
More testers. Feedback, fixes, polish.
Release
Molten Vow opens for everyone.
Premium
More story, new features, new bosses.
Follow the build
Day by day, boss by boss. See what's new before anyone else.
Get the beta link and be first in line when Molten Vow opens for everyone.
Oct 26Link + 2-step install guide by email.
Oct 27Day 1. Everyone starts together.
Dec 31Day 66. The boss falls – or goes into your chronicle.
Fair questions
What is The Last 66?
A shared chapter. On October 27, 2026, exactly 66 days are left in the year – the length of one chapter in Molten Vow. Everyone who joins starts Day 1 together and plays until New Year's Eve, each with their own boss and their own four habits. Flow, who builds Molten Vow, plays the same chapter in public on TikTok, Instagram and YouTube. Free.
Is it free?
The beta is completely free. Later there will be a fair free version: your tracking is never locked behind a paywall. Extra bosses and deeper reflections will be premium.
Does it work on iPhone?
Yes. Molten Vow runs as an app you install from the browser (Safari on iPhone, Chrome on Android). No app store needed during the beta.
What happens to my data?
It stays on your phone. No account, no cloud. Your boss name, your vow and your notes never leave the device. Feedback during the beta is anonymous and contains numbers only.
Is this only for men?
It's written for men who are rebuilding, in tone and in its bosses. Anyone can play.
What if I'm going through something really hard?
Then a game is not enough, and that's okay. The app has a help section with crisis lines, and when your mood stays very low, the boss goes quiet. Help is below.