FOR IMMEDIATE RELEASE

GLASS TURNS THE FOUR-COLOR THEOREM INTO A CALM STAINED-GLASS PUZZLE FOR IPHONE AND IPAD

Fill each window with four colors. Matching colors can't touch. Adaptive music grows as the light
comes through.

London, 2026 — Fountain Interactive today announced GLASS, a calm stained-glass logic puzzle for
iPhone, iPad and iPhone Duo. Each window is a pattern of panes to fill with four colors, under one
rule: panes that touch can't share a color.

Every placement narrows the possibilities around it, so the puzzle tightens as the design comes
together. When the last pane is in, the window lights up against a dark, gallery-like backdrop. An
adaptive score builds alongside, adding a layer with each step, so the music finishes when the
window does.

GLASS is built for relaxed play, with no timers and no ads. Twelve puzzles are included for free.
Twenty optional packs add twelve more windows each, and palette packs change the look of the glass
without changing the game.

AVAILABILITY
GLASS is coming soon to the App Store (https://apps.apple.com/app/id6759615170), free to download
with optional in-app purchases.

ABOUT FOUNTAIN INTERACTIVE
Fountain Interactive is an independent interactive studio in London, founded by Dan Fountain. Dan
has spent more than ten years making tactile, playful software. He was the game designer and
technical artist behind the fluid ink in State of Play's INKS., winner of a 2016 Apple Design Award,
and has worked on the Apple Design Award-winning Blackbox for AVP and the BAFTA-winning Lumino City.
Fountain Interactive's first two apps, Fold & Squish and Tiny Computers, launched alongside iPhone
Duo in October 2026. Glass is its third.

PRESS CONTACT
support@fountaininteractive.com
Press kit: https://fountaininteractive.com/glass/press/

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