Marble puzzle · by STNC

Spin. Match. Clear.

Coloured balls roll into rotatable four-cup rings. Fill a ring with four of a kind and it explodes. Clear the board. One hundred circuits on iOS and Android — try ten free in the browser, nothing to install.

RotaBall app icon — a chrome four-cup ring holding red, blue, yellow and green balls

01  /  The puzzle

How it plays

Press a ball to send it through a pipe. Press the hub to rotate the ring. Later boards add gates, dye pots, one-ways, hourglasses and colour-order lights.

The goal

Four of a kind

Fill every required ring with four matching colours. Cleared rings stay as junctions, so the board keeps changing under you.

The pipes

Pipes with rules

Colour gates bounce the wrong ball. Paint pots recolour mid-pipe. Arrows are one-way. Hourglasses give you only so long.

The campaign

100 hand-built boards

From first spin to late-game mixes. Passwords unlock levels, so progress is yours to keep. No accounts. No ads in the puzzle.

02  /  Screenshots

In play

Five boards from the campaign, from the opening spin to colour-order lights.

03  /  Get the game

Full game on iOS & Android

The complete 100-level campaign is out now on Google Play. The App Store version is on its way; the link appears here as soon as the listing is live.

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