Game · Puzzle, board & word games

Lights Off

Turn off all the lights.

Completely free
Linux
Open source

At a glance

Lights Off is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Lights Off is a collection of light switch puzzles. Clicking on a light toggles it either on or off, but also toggles all the surrounding lights, too. Your objective is simple: turn off all the lights! Players who delight in turning off lights will enjoy the huge number of levels.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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