Name: Lights Off
Author: The GNOME Project

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.

Lights Off

Overview of changes in lightsoff 40.0.1<ul><li>Updated appdata with 40.0 stable info</li></ul>

Overview of changes in lightsoff 40.0<ul><li>Updated translations</li><li>Use unowned for GtkChild fields (Rico Tzschichholz)</li></ul>

Overview of changes in lightsoff 40.rc<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 40.beta<ul><li>Updated translations</li><li>Rework UI to work better on smaller screens (Arnaud Bonatti)</li></ul>

Overview of changes in lightsoff 40.alpha<ul><li>Updated translations</li><li>Code cleanup and modernization (Arnaud Bonatti)</li></ul>

Overview of changes in lightsoff 3.38.0<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.37.90<ul><li>Updated translations</li><li>Updated help</li><li>Updated build</li><li>Switch to GTK mode by default (Robert Roth)</li></ul>

Overview of changes in lightsoff 3.36.0<ul><li>Updated translations</li><li>Updated help</li></ul>

Overview of changes in lightsoff 3.35.90<ul><li>Updated translations</li><li>Updated help</li></ul>

Overview of changes in lightsoff 3.34.0<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.33.92<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.32.0<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.31.92<ul><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.31.91<ul><li>Snap build fixes (Jeremy Bicha)</li><li>Updated translations</li></ul>

Overview of changes in lightsoff 3.31.90<ul><li>Snap build fixes (Jeremy Bicha)</li><li>Unify application identifier !5 (Bilal Elmoussaoui)</li><li>Added tests to validate appdata and desktop !5 (Bilal Elmoussaoui)</li><li>Updated appdata !5 (Bilal Elmoussaoui)</li><li>Added flatpak nightly builds !6 (Bilal Elmoussaoui)</li><li>Updated translations</li></ul>


      Select an operating system and let Boxes download and install it for you
      in a virtual machine.
    
      Features:
      
        Download freely available operating systems
        Automatically install CentOS Stream, Debian, Fedora, Microsoft Windows, OpenSUSE, Red
      Hat Enterprise Linux, and Ubuntu
        Create virtual machines from operating system images with a couple of clicks
        Limit the resources (memory and storage) your virtual machines consume from your system
        Take snapshots of virtual machines to restore to previous states
        Redirect USB devices from your physical machine into virtual machines
        3D acceleration for some of the supported operating systems
        Automatically resize virtual machines displays to the window size
        Share clipboard between your system and virtual machines
        Share files to virtual machines by dropping them from your file manager into the Boxes window
        Setup Shared Folders between your system and virtual machines
      
    

Boxes


      A simple application to keep your disk usage and available space under control.
    
      
      Disk Usage Analyzer can scan specific folders, storage devices and online accounts.
      It provides both a tree and a graphical representation showing the size of each folder,
      making it easy to identify where disk space is wasted.
    
    

Disk Usage Analyzer

Check folder sizes and available disk space

A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.
      Evince supports documents in: PDF, PS, EPS, XPS, DjVu, TIFF, DVI (with SyncTeX), and Comic Books archives (CBR, CBT, CBZ, CB7).
    

Document Viewer

Document viewer for popular document formats


      Calculator is an application that solves mathematical equations.
      Though it at first appears to be a simple calculator with only basic
      arithmetic operations, you can switch into Advanced, Financial, or
      Programming mode to find a surprising set of capabilities.
    
      
      The Advanced calculator supports many operations, including:
      logarithms, factorials, trigonometric and hyperbolic functions,
      modulus division, complex numbers, random number generation, prime
      factorization and unit conversions.
    
      
      Financial mode supports several computations, including periodic interest
      rate, present and future value, double declining and straight line
      depreciation, and many others.
    
      
      Programming mode supports conversion between common bases (binary, octal,
      decimal, and hexadecimal), boolean algebra, one’s and two’s complementation,
      character to character code conversion, and more.
    
    

Calculator

Perform arithmetic, scientific or financial calculations

GNOME Text Editor is a simple text editor focused on a pleasing default experience.
    

Text Editor


      A small application that allows you to monitor the current weather
      conditions for your city, or anywhere in the world.
    
      
      It provides access to detailed forecasts, up to 7 days, with hourly
      details for the current and next day, using various internet services.
    
      
      It also optionally integrates with the GNOME Shell, allowing you to see
      the current conditions of the most recently searched cities by just
      typing the name in the Activities Overview.
    
    

Weather


      GNOME Extensions handles updating extensions, configuring extension preferences and removing or disabling unwanted extensions.
    
      
      The application requires GNOME 3.36 or newer to work.
    
    

Extensions


      GNOME Calendar is an elegant tool to help you plan and stay on top of your schedule for
      upcoming days and weeks, whether your months are filled with meetings and appointments,
      public events, travel logistics, or other commitments in your life.
    
      
      Easily create and manage unlimited calendars and events with GNOME Calendar's infinite
      scrolling month view, week timetable, and scheduling list view.
    
      
      Integrating the latest GNOME technologies and design best practices, GNOME Calendar builds on
      top of the mature Evolution data server to manage large quantities of events and to provide
      integration with other applications. You can add calendars from various online calendaring
      services (like NextCloud, Google Calendar, and CalDAV / WebDAV servers), enabling you to
      synchronize your events across multiple devices and platforms. GNOME Calendar also supports
      local and offline calendaring, so you can use it anywhere and anytime while travelling
      (or after civilization's collapse.)
    
    

Calendar


      Fonts shows you the fonts installed on your computer for your use as
      thumbnails.
      Selecting any thumbnails shows the full view of how the font would look under
      various sizes.
    
      
      Fonts also supports installing new font files downloaded in the .ttf
      and other formats.
      Fonts may be installed only for your use or made available to all users on the computer.
    
    

Fonts


      A simple and elegant clock application.
      It includes world clocks, alarms, a stopwatch, and timers.
    
      
        Show the time in different cities around the world
        Set alarms to wake you up
        Measure elapsed time with an accurate stopwatch
        Set timers to properly cook your food
      
    

Clocks


      Contacts keeps and organize your contacts information. You can create,
      edit, delete and link together pieces of information about your contacts.
      Contacts aggregates the details from all your sources providing a
      centralized place for managing your contacts.
    
      
      Contacts will also integrate with online address books and automatically
      link contacts from different online sources.
    
    

Contacts


      Maps gives you quick access to maps all across the world. It allows you
      to quickly find the place you’re looking for by searching for a city or
      street, or locate a place to meet a friend.
    
      
      Maps uses the collaborative OpenStreetMap database, made by hundreds of
      thousands of people across the globe.
    
    

Maps

Logs shows events from the systemd journal, and sorts them into
       categories, such as hardware and applications.
      Using Logs you can search your logs by typing a search term, and
       view detailed information about each event by clicking on it.
    

Logs


      Take pictures and videos on your computer, tablet, or phone.
    
    

Camera

Browse through your images and inspect their metadata with:
      
        Fast GPU accelerated image rendering
        Tiled rendering for vector graphics
        Extendable and sandboxed image decoding
        Accessible presentation of the most important metadata.
      
    

Image Viewer


      Characters is a simple utility application to find and insert unusual characters.  It allows you to quickly find the character you are looking for by searching for keywords.
    
      
      You can also browse characters by categories, such as Punctuation, Pictures, etc.
    
    

Characters


    Connections allows you to connect to and use other desktops. This can be a great way to access content or software on a different desktop operating system. It can also be used as a way to provide support to users who might need help.
    
      
    A range of different operating systems can be connected to, including Linux and Windows desktops. You can also connect to virtual machines.
    
      
    Connections uses the widely supported VNC and RDP protocols, and one of these must be enabled on the desktop that you want to connect to.
    
    

Connections


      The web browser for GNOME, featuring tight integration with the desktop
      and a simple and intuitive user interface that allows you to focus on your
      web pages. If you’re looking for a simple, clean, beautiful view of the
      web, this is the browser for you.
    
      
      Web is often referred to by its code name, Epiphany.
    
    


      A really easy way to scan both text and images.
      You can crop out the bad parts of an image and rotate it if it is the wrong way round.
      You can print your scans, export them to pdf, or save them in a range of image formats.
    
      
      This app uses the SANE framework to support most existing scanners.
    
    

Document Scanner

Make a digital copy of your photos and documents


      Brasero is a application to burn CD/DVD for the GNOME Desktop.
      It is designed to be as simple as possible and has some unique features to
      enable users to create their discs easily and quickly.
    
      
      Brasero can create, copy and burn Data and Audio CD/DVDs.
      It fully supports CD-TEXT, multisession and joliet extensions.
      You can simply drag and drop files from other local applications or from
      remote shared drives to easily burn them to a disc.
    
    

Brasero

Create, copy and burn Data and Audio CD/DVDs

Dconf Editor is a tool to allow direct editing of the dconf configuration database. This is useful when developing applications that use these settings.Editing your configuration directly is an advanced feature and may cause applications to not work correctly.

Dconf Editor

A graphical tool for editing the dconf database

Sound Recorder provides a simple and modern interface that provides a straight-forward way to record and play audio. It allows you to do basic editing, and create voice memos.Sound Recorder automatically handles the saving process so that you do not need to worry about accidentally discarding the previous recording.Supported audio formats:Ogg Vorbis, Opus, FLAC, MP3 and MOV

Sound Recorder

A simple, modern sound recorder for GNOME


      Meld is a visual diff and merge tool targeted at developers.
      Meld helps you compare files, directories, and version controlled projects.
      It provides two- and three-way comparison of both files and directories,
      and supports many version control systems including Git, Mercurial,
      Bazaar and Subversion.
    
      
      Meld helps you review code changes, understand patches, and makes enormous
      merge conflicts slightly less painful.
    
    

Meld


      Access, organize and share your photos on GNOME. A simple and elegant
      replacement for using a file manager to deal with photos. Enhance, crop
      and edit in a snap. Seamless cloud integration is offered through GNOME
      Online Accounts.
    
      You can:
      
        Automatically find all your pictures
        View recent local and online photos
        Access your Facebook or Flickr pictures
        View photos on TVs, laptops or other DLNA renderers on your local
          network
        Set pictures as your desktop background
        Print photos
        Select favorites
        Easily edit your pictures in the app, or send to a full featured
          editor for more advanced changes
      
    

Photos

Access, organize and share your photos on GNOME


      GNOME Chess is a simple chess game. You can play against your computer at
      three different difficulty levels, or against a friend at your computer.
    
      
      Computer chess enthusiasts will appreciate GNOME Chess’s compatibility with
      nearly all modern computer chess engines, and its ability to detect several
      popular engines automatically if installed.
    
    

GNOME Chess

Play the classic two-player board game of chess

Passwords and Keys is a GNOME application for managing encryption keys.With Passwords and Keys you can create and manage PGP keys, create and manage SSH keys, publish and retrieve keys from key servers, cache your passphrase so you don’t have to keep typing it and backup your keys and keyring.

Passwords and Keys

Manage your passwords and encryption keys


      Play the popular Japanese logic game. GNOME Sudoku is a must-install for
      Sudoku lovers, with a simple, unobtrusive interface that makes playing
      Sudoku fun for players of any skill level.
    
      
      Each game is assigned a difficulty similar to those given by newspapers
      and websites, so your game will be as easy or as difficult as you want it
      to be.
    
      
      If you like to play on paper, you can print games out. You can choose how
      many games you want to print per page and what difficulty of games you
      want to print: as a result, GNOME Sudoku can act a renewable Sudoku book
      for you.
    
    

GNOME Sudoku

Test your logic skills in this number grid puzzle

GNOME Mines is a puzzle game where you search for hidden mines. Flag the spaces with mines as quickly as possible to make the board a safer place. You win the game when you’ve flagged every mine on the board. Be careful not to trigger one, or the game is over!You can select the size of the field you want to play on at the start of the game. If you get stuck, you can ask for a hint: there’s a time penalty, but that’s better than hitting a mine!

GNOME Mines

Quadrapassel is a derivative of a classic Russian falling-block game. Reposition and rotate the blocks as they fall, and attempt to fit them together. When you form a complete horizontal row of blocks, the row will disappear and you score points. The game is over when the blocks get stacked too high. As your score gets higher, you level up and the blocks fall faster.If you’re looking for a challenge, Quadrapassel allows you to increase the initial speed of the blocks, or begin the game with partial blocks on some of the rows. Or, instead of allowing the blocks to fall randomly, it can select blocks that will be hard for you to place.

Quadrapassel

Play the highly addictive 2048 game. GNOME 2048 is a clone of the popular single-player puzzle game. Gameplay consists of joining numbers in a grid and obtain the 2048 tile.Use your keyboard's arrow keys to slide all tiles in the desired direction. Be careful: all tiles slide to their farthest possible positions, you cannot slide just one tile or one row or column. Tiles with the same value are joined when slided one over the other.With every new tile obtained you increase your score. If you think you can easily get the 2048 tile, do not let it stop you, the game does not end there, you can continue joining tiles and improving your score.Originally created by Gabriele Cirulli, 2048 has gained much popularity due to it being highly addictive. Cirulli's 2048 is in turn a clone of the 1024 game and includes ideas from other clones.

GNOME 2048

Reversi is a two-player strategy game, played on an 8 by 8 board. Players use tiles that are dark on one side and light on the other.The object of reversi is to flip your opponent’s tiles to your color, while your opponent is trying to flip your tiles to his own color. Opponent’s tiles are flipped when trapped between an already placed tile of your color and the tile you add. Who finishes with more tiles wins!GNOME Reversi allows you to play both a classic reversi game, and the reversed variant, where the goal is to finish with less tile than your opponent.

GNOME Reversi

Dominate the board in a classic reversi game, or play the reversed variant

Control a worm in its quest to eat bonuses and become longer. Outmaneuver enemy worms while eating doughnuts and ice cream to increase your length. Each worm has ten lives and loses one by running into a wall, another worm, or itself. The enemy worms are after the same bonuses that you are, so be careful: if they become too large, you won’t have much room for movement.The adventure progresses through 26 maps of increasing difficulty. The early levels are mostly open with a few walls, but later on, cramped spaces and teleporters make things more interesting.Play on your own against up to five enemy worms, or share your keyboard to play with a friend.

GNOME Nibbles

Each square piece has a number on each side. Position the pieces on the left side of the board so that the same numbers are next to each other. If the numbers don’t match, you can’t put the piece there. Move quickly: you’re being timed!You can make the game easier or harder by changing the size of the board.

GNOME Tetravex

A family classic, the objective of Four-in-a-row is to build a line of four of your marbles while trying to stop your opponent (human or computer) from building a line of his or her own. A line can be horizontal, vertical or diagonal. The first player to connect four in a row is the winner!Four-in-a-row features multiple difficulty levels. If you’re having trouble, you can always ask for a hint.

Four-in-a-row

Five or More is the GNOME port of a once-popular computer game. Align five or more objects of the same color into a line to cause them to disappear and score points. Earn many more points by lining up as many objects as possible before clearing them.More objects appear after every turn. Play for as long as possible, until the board is completely full!

Five or More

Remove colored balls from the board by forming lines

Taquin is a computer version of the 15-puzzle and other sliding puzzles.The object of Taquin is to move tiles so that they reach their places, either indicated with numbers, or with parts of a great image.

GNOME Taquin

Remove as many squares as possible from the board. Click on a group of squares of the same color to make them all disappear in one fell swoop, causing other squares to fall into place. It is not possible to remove a single square at a time. You get far more points for clearing a larger group of squares, and also for clearing the entire board.Swell Foop is always very quick to play, but you can make it somewhat longer by changing the board size.

Swell Foop

Clear the screen by removing groups of colored and shaped tiles

GNOME Klotski is a set of block sliding puzzles. The objective is to move the patterned block to the area bordered by green markers. To do so, you’ll need to slide other blocks out of the way. Complete each puzzle in as few moves as possible!GNOME Klotski comes with nearly thirty different puzzle layouts of varying difficulty. Some of the layouts are similar and only the size of one or more blocks differ. Other layouts have more variety.

GNOME Klotski

A variation on poker with dice and less money, this game is a family classic. Throw the dice three times in a row, holding back the ones you like, in order to make the best possible hand. You can also play a lesser-known variant with colored dice.Play between one and five opponents at three difficulty levels.

Tali

It is the distant future: the year 2000. Evil robots are trying to kill you. Avoid the robots or face certain death.Fortunately, the robots are extremely stupid and will always move directly towards you. Trick them into colliding into each other, resulting in their destruction, or into the junk piles that result. You can defend yourself by moving the junk piles, or escape to safety with your handy teleportation device.Your supply of safe teleports is limited, and once you run out, teleportation could land you right next to a robot, who will kill you. Survive for as long as possible!

GNOME Robots

Avoid the robots and make them crash into each other

Lights Off

Turn off all the lights

Changes in version 40.0.1

Community built

Other apps by The GNOME Project