Marble Mazer

Gravity, in your hands

You hold the phone, you tilt it, the board tilts with you. The marble goes wherever physics says it goes — which is rarely where you meant.

Ice won't let you brake. Mud won't let you go. Boost pads don't ask. Roll off the edge and you're back at the last checkpoint, one fall heavier.

Clear the board and you get three numbers and a letter: your time, your falls, and a grade from S down to F. S is called Untouchable. F is called The board won.

The board lies

Most marble games test your hands. This one also tests what you're willing to believe.

A floor that isn't a floor. A wall you can walk straight through. A goal that turns out to be decoration, ten seconds into the best run you've had. Tiles that drop away the moment you commit to them. Walls that slam shut when you get close enough to matter.

Get far enough in and the whole board turns — a wall face swings down and becomes the floor, and everything you'd learned about the level is now sideways.

And it talks. Nothing dramatic. A line when you fall. A different line when you fall in the same hole again. A line when you finally clear it that doesn't quite congratulate you.

What's in it

• 22 boards, hand-built, easy to unfair. Two chapters: The climb, and The deep end. The deep end opens with “no more warnings,” which is not a joke.
• Tilt, calibrated to you. Set the zero point and the sensitivity for how you actually hold the phone — on the couch, in bed, upright on a train. Prefer a thumb? There's an on-screen stick.
• A grade on every run. Time and falls, S through F, and your best per board kept forever.
• Race yourself. On the boards that can take one, your best run comes back as a ghost to chase. The trap boards can't — a ghost tracing the route would give the lie away.
• Marbles. More than twenty of them, unlocked by playing: clean clears, and days in a row. None of them are for sale.
• A soundtrack that reads the room. The music rearranges itself around how the run is going, and gets quieter when you don't deserve it.
• Works on a plane. No account, no sign-in, nothing to connect. Nothing the app does reaches the internet — every record lives on your phone and stays there.
• Free. No ads. No in-app purchases. No currency.

It started on Reddit

Marble Mazer was a Reddit game before it was an app — played inside the feed, where a board arrived as a post and an entire subreddit rolled the same one.

That version was a crowd. A leaderboard down the side of the board. The record holder's ghost to race. Notes people carved onto individual tiles, so you'd arrive at row three and find a stranger's warning already sitting there. A heatmap of exactly where everyone else had fallen — usually one tile before you did. And an editor: people built their own boards, the subreddit voted on them, and the ones that survived got crowned into posts of their own.

This is the single-player cut. No thread, no feed, no one to ask. Twenty-two hand-built boards, your own records, your own ghost, and a board that behaves exactly the same whether or not anyone is watching.

The crowd parts — the notes, the heatmap, the editor, other people's boards — aren't in this version. They needed a thread, and there isn't one yet.