PRISM

40 LASER PUZZLES

DOWNLOAD FOR ANDROID

APK · 1.0 MB · ANDROID 7.0+ · FREE · NO ADS

Laser247 Prism on an Android phone, showing the LASER247 logo and the play button

LIGHT ENTERS. YOU DECIDE WHERE IT GOES.

Laser247 Prism is a puzzle game about routing a laser. Turn mirrors to bend the beam, pass it through splitters to send it two ways at once, and fan white light through a prism into red, green and blue. Every target wants one exact colour — no more, no less — so getting close is not the same as getting it right.

I · REFLECTION

Mirrors, and the shortest path between two points that is never straight.

II · DIVISION

Beam splitters send a single laser down two roads at once.

III · SPECTRUM

Prisms fan white light apart. Filters take colour away.

IV · CONVERGENCE

Portals, steerable emitters, and targets wanting colours no single beam can carry.

SEE IT

PRISM chapter one puzzle: a red laser reflecting off mirrors toward a target
REFLECTION
A prism splitting a white laser beam into red, green and blue
SPECTRUM
A late PRISM level with portals, a beam splitter and two laser emitters
CONVERGENCE
PRISM level select screen showing four chapters and earned stars
40 LEVELS

BUILT FOR THINKING, NOT RUSHING

EVERY PUZZLE IS PROVEN

No level shipped without a computer solving it first. An exhaustive search confirms each puzzle has a solution and sets par to the true minimum number of taps.

MIXED LIGHT, NOT PAINT

Red and green make yellow here, the way real light works. Lighting a cyan target means landing green and blue on it together.

NO TIMERS, NO LIVES

No energy meter, no ads, nothing to buy. Undo freely, reset anytime, and take a hint when a board defeats you.

COLLECTS NOTHING

No internet permission at all. Progress is stored on your device and never leaves it.

DOWNLOAD

Install straight from here — no store account needed.

  1. Tap the download button. Your browser saves Laser247.apk.
  2. Open the downloaded file from your notification shade or Downloads folder.
  3. Android asks permission to install from this source the first time. Allow it.
  4. Tap Install, then open PRISM. That's it.

DOWNLOAD APK · 1.0 MB

Requires Android 7.0 (Nougat) or newer. Also coming to Google Play and Softonic.

QUESTIONS

Is PRISM free?

Yes, completely. No advertisements, no in-app purchases, no subscriptions, nothing locked behind money.

Does it need an internet connection?

No. The game works entirely offline. It declares no internet permission at all, so it cannot send or receive data even if you wanted it to.

Is it safe to install an APK?

Downloading from this page gets you the build published by LASER247 directly. Android will warn you the first time you install from a browser — that warning appears for any app not installed from a store, and you can allow it for this file.

Does PRISM collect any personal data?

No. Progress is stored locally on your own device and never leaves it. There is no analytics, no crash reporting and no third-party code. See the privacy policy.

How many levels are there?

40, across four chapters. Each has a par score; matching par earns three stars, for 120 in total. Par is the genuine minimum, computed by exhaustive search — so three stars is a real achievement.