ROLLWERK

Tilt your wrist and a steel ball rolls across the face of your watch. That is the whole game.

ROLLWERK The Wrist Labyrinth is a labyrinth in the old wooden-box tradition, rebuilt for a round display and driven entirely by the accelerometer. Dip an edge and the ball goes that way. It coasts, it drifts wide on a curve, and the only way to stop it is to tilt back against it. There is no button that moves the ball.

Twenty hand-built mazes, meant to be played through in order. Each one asks for something the one before it did not:

• Switchbacks and staircases, where the gaps step across the board and you never get a full-width run at anything
• Rings and spokes, where a lap of the watch face replaces a there-and-back
• Spirals of two and three rings, corridors barely wider than the ball
• Timed gates that open and shut on a rhythm you learn by attempt, with a warning flash before every one closes, because a door you cannot see coming is a trap, not a puzzle
• Holes that pull, and a goal that has to be sunk

The board is a genuine circle, not a rectangle cropped to fit. The rim is part of the maze.

FEATURES

• Motion control only. No button steers the ball
• 20 levels of escalating difficulty, from a first lesson in coasting to three-ring spirals with staggered gates
• Per-level best times, and a clock running while you play
• Picks up where you left off: reopen the app and choose CONTINUE at your level or START OVER at level 1
• Three tilt sensitivities (LOW / NORMAL / HIGH), changed mid-run from the pause screen
• Calibrates to however your wrist rests: left arm, right arm, sitting, standing. Recalibrate at any time
• Keeps the backlight on while the ball is live, so a steady wrist does not put the screen to sleep, and stops the moment play stops
• Haptic feedback on a fall and on a finish
• Two hand-built visual designs: a dark machined labyrinth on AMOLED, a high-contrast black-on-white instrument dial on MIP, readable in direct sunlight
• Goes fully idle on the result screens. No redraws, no sensor, no battery
• Touchscreen devices get tap and swipe for the same actions

CONTROLS

• Tilt the wrist: roll the ball
• START / SELECT: confirm, resume, retry, next level
• BACK: pause; press again to exit
• UP / DOWN: tilt sensitivity, on the pause screen
• Long UP (MENU): recalibrate

NOTES

The accelerometer stays off until you start a run, and is handed back the moment play stops. Sensor permission is required for the tilt controls and is used for nothing else. No network access, no data leaves the watch.

The simulator reports a static accelerometer, so the ball will sit still there. This game only works on a wrist.