BlockOut II is a game where the player moves and rotate 3D polycubes that are constantly falling with the objective of clearing layers of blocks. It is a free adaptation of the original BlockOut game released in 1989.

PrusaSlicer takes 3D models (STL, OBJ, AMF) and converts them into G-code instructions for FFF printers or PNG layers for mSLA 3D printers. It's compatible with any modern printer based on the RepRap toolchain, including all those based on the Marlin, Prusa, Sprinter and Repetier firmware. It also works with Mach3, LinuxCNC and Machinekit controllers.

PrusaSlicer is based on Slic3r by Alessandro Ranelucci and the RepRap community.

You drive a toy wood engine in many levels and you must collect all the coaches to win. Full-featured: Colorful animated wood engine, 50 levels, 3 beautiful music tracks and many sound effects.

Ri-li is translated in 19 languages: Arabic, Breton, Chinese, Dutch, English, Esperanto, French, German, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Slovak, Spanish, Swedish and Turkish.

amsynth is an analog modelling (a.k.a virtual analog) software synthesizer. It mimics the operation of early analog subtractive synthesizers with classic oscillator waveforms, envelopes, filter, modulation and effects. The aim is to make it easy to create and modify sounds.

Features:

• Dual oscillators (sine / saw / square / noise) with hard sync
• 12/24 dB/oct resonant filter (low-pass / high-pass / band-pass / notch)
• Mono / poly / legato keyboard modes
• Dual ADSR envelope generators (filter & amplitude)
• LFO which can modulate the oscillators, filter, and amplitude
• Distortion and reverb
• Hundreds of presets

There are currently several different ways to run amsynth:

• Stand-alone application using JACK, ALSA or OSS
• DSSI plug-in
• LV2 plug-in
• VST plug-in

A translation app for GNOME.

Features:

• Translation based on Google Translate
• Translation based on the LibreTranslate API, allowing you to use any public instance
• Translation based on Lingva Translate API
• Translation based on Bing
• Translation based on Yandex
• Translation based on DeepL
• Text to speech
• Translation history
• Automatic language detection
• Clipboard buttons

A VTK-based 3D viewer following the KISS principle, so it is minimalist, efficient, has no GUI, has simple interaction mechanisms and is fully controllable using arguments on the command line.

Ardour is a multi-channel digital audio workstation, allowing you to record, edit, mix and master audio and MIDI projects.

It is targeted at audio engineers, musicians, soundtrack editors and composers.

Ardour is a multi-channel digital audio workstation, allowing you to record, edit, mix and master audio and MIDI projects.

It is targeted at audio engineers, musicians, soundtrack editors and composers.

Advanced Strategic Command is a free, turn based strategy game. It is designed in the tradition of the Battle Isle series from Bluebyte and is currently available for Windows and Linux.

ASC can be played both against the AI and against other human players, using hotseat or PlayByMail. It is also used to run the multiplayer universe Project Battle Planets.

Atomorun is a OpenGL Jump and Run game where you have to flee an exploding nuclear bomb.

Atomorun X-Mas Edition comes with a very beatiful christmas-story, especially families will enjoy it:

Atomio was just walking around somewhere in the alpine region, when santa crashed with his nuclear driven sleigh. Now Atomio has to run, because he doesn't want to be contaminated.

Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files, as well as comic book archive files. When supported by the document, it also allows searching for text, copying text to the clipboard, hypertext navigation and table-of-contents bookmarks.

Atril is a fork of Evince and part of the MATE Desktop Environment. If you would like to know more about MATE and Atril, please visit the project's home page.

Berusky 2 is a 3D puzzle game where you control up to 5 bugs that have to work together to solve puzzles by moving boxes, using keys and blowing up explosives.

Blivet-gui is a graphical tool that provides an easy way to create, delete or edit partitions, LVM, RAID or Btrfs volumes.

Available advanced options includes setting up encrypted devices (LUKS), LVM or Btrfs volumes spanning more drives.

Bluefish is a powerful editor targeted towards programmers and web developers, with many options to write code, scripts and websites. Bluefish supports many programming and markup languages and has many features, but is still a very fast and lightweight application.

<em>Note that the flatpak version of Bluefish does not integrate well with other tools on your system.</em>

A selection of the features:

• Well done syntax highlighting which for example supports languages inside languages (e.g. Javascript inside HTML inside PHP)
• All kind of powerful editor features like auto indenting and auto completion for many functions and libraries in many programming languages
• Project support
• Support for remote files over ftp, sftp, webdav, etc
• Powerful multi-file and regex capable search and replace engine
• Customizable integration of external programs such as pylint, make, etc
• Snippets plugin to automate often used code
• Code-aware in-line spell checking
• Zencoding or Emmet support
• Bookmarks

If you are an occasional coder who is in need for a simple to learn editor, or a heavy coder who dislikes heavy IDE's like eclipse or netbeans, Bluefish is your editor of choice!

Bos Wars is a futuristic real-time strategy game (RTS). In a RTS game, the player has to combat his enemies while developing his war economy. Everything runs in real-time, as opposed to turn-based games where the player always has to wait for his turn. The trick is to balance the effort put into building his economy and building an army to defend and attack the enemies.

Bos Wars has a dynamic rate based economy. Energy is produced by power plants and magma gets pumped from hot spots. Buildings and mobile units are also built at a continuous rate. Control of larger parts of the map creates the potential to increase your economy throughput. Holding key points like roads and passages allow for different strategies.

It is possible to play against human opponents over LAN, internet, or against the computer. Bos Wars aims to create a completly original and fun open source RTS game.

Bubblemail is a D-Bus service providing a list of the new and unread mail from local mailboxes, pop, imap, and gnome online accounts. It includes a libnotify frontend to create notifications and can be used by other frontends as well.

calibre is the one stop solution to all your e-book needs.

You can use calibre to catalog your books, fetch metadata for them automatically, convert them from and to all the various e-book formats, send them to your e-book reader devices, read the books on your computer, edit the books in a dedicated e-book editor and even make them available over the network with the built-in Content server. You can also download news and periodicals in e-book format from over a thousand different news and magazine websites.

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way to experience the web.

We invite you to join our effort to build a powerful platform for developing a new generation of web applications.

Chromium supports Vorbis, Theora, WebM and HTML5 audio and video standards, but does not include the non-free AAC, H.264, MP3 or Adobe Flash code that is found in Chrome.

You are captain of the cargo ship Chromium B.S.U., responsible for delivering supplies to our troops on the front line. Your ship has a small fleet of robotic fighters which you control from the relative safety of the Chromium vessel. This is an OpenGL-based shoot 'em up game with fine graphics.

Your mission:

• Do not let ANY enemy ships get past your fighters! Each enemy ship that makes it past the bottom of the screen will attack the Chromium, and you lose a fighter.
• Use your fighters as weapons! Crash into enemies to destroy them before they can get past you.
• Strategic suicide is a powerful tactic! When the Chromium launches a new fighter, it releases a high energy burst which destroys all enemies in range.
• Self-destruct to preserve your ammunition! A double-right-click will cause your current fighter to self-destruct. Before the ship blows up, it ejects its ammunition so that the next fighter can pick it up.

krop is a simple graphical tool to crop the pages of PDF files.

It is written in Python and relies on PyQT, python-poppler-qt5 and PyPDF2 for its functionality.

A unique feature of krop is its ability to automatically split pages into subpages to fit the limited screen size of devices such as eReaders. This is particularly useful, if your eReader does not support convenient scrolling.

Vorta is a backup client for macOS and Linux desktops. It integrates the mighty BorgBackup with your desktop environment to protect your data from disk failure, ransomware and theft.

Why is this great?

• Encrypted, deduplicated and compressed backups using Borg as backend.
• No vendor lock-in – back up to local drives, your own server or BorgBase, a hosting service for Borg backups.
• Open source – free to use, modify, improve and audit.
• Flexible profiles to group source folders, backup destinations and schedules.
• One place to view all point-in-time archives and restore individual files.

Chatterino is a chat client for Twitch.tv.

CorsixTH aims to reimplement the game engine of Theme Hospital, and be able to load the original game data files. This means that you will need a purchased copy of Theme Hospital, or a copy of the demo, in order to use CorsixTH. After most of the original engine has been reimplemented in open source code, the project will serve as a base from which extensions and improvements to the original game can be made.

CHIRP is a free, open-source tool for programming your radio. It supports a large number of manufacturers and models, as well as provides a way to interface with multiple data sources and formats.

Tilix is a tiling terminal emulator.

It lets you:

• Layout terminals in any fashion by splitting them horizontally or vertically
• Terminals can be re-arranged using drag and drop both within and between windows
• Terminals can be detached into a new window via drag and drop
• Input can be synchronized between terminals so commands typed in one terminal are replicated to the others
• The grouping of terminals can be saved and loaded from disk
• Terminals support custom titles
• Color schemes are stored in files and custom color schemes can be created by simply creating a new file
• Transparent background
• Supports notifications when processes are completed out of view

The application was written using GTK 3 and an effort was made to conform to GNOME Human Interface Guidelines (HIG). As a result, it does use client-side-decorations, though it can be disabled if necessary.

Tilix has been tested with GNOME and with Unity.

FeatherPad is a lightweight Qt plain-text editor for Linux. It is independent of any desktop environment and has:

• Drag-and-drop support, including tab detachment and attachment
• X11 virtual desktop awareness (using tabs on current desktop but opening a new window on another)
• An optionally permanent search-bar with a different search entry for each tab
• Instant highlighting of found matches when searching
• A docked window for text replacement
• Support for showing line numbers and jumping to a specific line
• Optional selection highlighting
• Syntax highlighting for common programming languages
• Ability to open URLs with appropriate applications
• Session management
• Side-pane mode
• Auto-saving
• Spell checking with Hunspell
• Printing
• Text zooming
• Appropriate but non-interrupting prompts
• Other features that can be found in its settings, on its menus or when it is actually used.

A regular expression is a special text string that describes a search pattern. Regex Tester shows all matches of search pattern in a string.

Figure out the word before your guesses run out!

• Three difficulty levels
• Almost 5k possible answers
• Need a break? Close the game and automatically pick back up where you left off

Read the books you love without having to worry about the different format complexities like EPUB, PDF, MOBI, CBR, etc.

Manage your library by tagging and updating metadata on books, to quickly find books using metadata searching and tag based filtering.

This version supports EPUB, MOBI, PRC, PDF, FB2 and comics (CBR and CBZ) formats with support for more formats to follow soon.

A task manager to help you keep track of the tasks that matter most.

Sometimes, you just need a task list to keep you motivated. Agenda provides a way to write down your tasks and tick them off as you complete them. The list is saved automatically, so you can close the list to get it out of the way without losing your place.

Key Features:

• Saves your task list automatically
• See your completed tasks until you choose to delete them
• Autocompletion for previously added tasks
• Undo/Redo with Ctrl-Z and Ctrl-Y
• Print tasklist to paper
• Quit with the Esc key

ClamTk is intended to be an easy to use, light-weight, on-demand scanner for Linux systems.

Features:

• View and edit markdown documents
• Convert markdown documents to HTML
• Tex math rendering
• Support for mermaid diagrams
• Support for charter plots
• Syntax highlighting for code blocks
• Integrated sketch editor
• Exports to
• Custom CSS themes
• Custom syntax themes
• Figure captioning and numbering

CopyQ is advanced clipboard manager with editing and scripting features.

CopyQ monitors system clipboard and saves its content in customized tabs. Saved clipboard can be later copied and pasted directly into any application.

JDim (JD improved) is a browser for Japanese textboard "2channel". The software has been forked from JD released under the terms of GPL-2.0, having look-and-feel and environment settings compatible.

Various features which are better viewing 2ch: Fetching updated posts, Hide NG word posts, Message posting, ASCII art input, Play-by-play mode, Mouse gestures, Display linked images, Bookmark and History, Filters for URL, Thread title search, Keyword search in thread, External boards support, Highly customizations and more...

PDF Arranger is a small application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface.

It is a frontend for pikepdf.

Discover a new chapter in reading with Foliate, the modern e-book reader tailored for GNOME. Immerse yourself in a distraction-free interface, with customization features designed to match your unique preferences.

Features include:

• Open EPUB, Mobipocket, Kindle, FB2, CBZ, and PDF files
• Paginated mode and scrolled mode
• Customize font and line-spacing
• Light, sepia, dark, and invert mode
• Reading progress slider with chapter marks
• Bookmarks and annotations
• Find in book
• Quick dictionary lookup

Dynamic Wallpaper Editor is a simple utility to create or edit dynamic wallpapers for the GNOME desktop.

The duration of each picture and each transition can be set separately or globally. The total duration can be 24 hours to do a wallpaper fitting the daylight.

This basic image editor can resize, crop, or rotate an image, apply simple filters, insert or censor text, and manipulate a selected portion of the picture (cut/copy/paste/drag/…)

And of course, you can draw! Using tools such as the pencil, the straight line, the curve tool, many shapes, several brushes, and their various colors and options.

Supported file types include PNG, JPEG and BMP.

Persepolis is easy to use graphical download manager that speed up your downloads!

Persepolis features:

Use the power of mind-mapping to make your ideas come to life. Minder provides a mindmap creation and exploration environment that focuses on a clean interface with smooth animations and rich, expressive elements to help capture and organize your ideas quickly and stay in the your flow.

• Quickly create visual mind-maps using the keyboard and automatic layout.
• Choose from many tree layout choices.
• Support for Markdown formatting.
• Support for insertion of Unicode characters.
• Add notes, tasks, and images to your nodes.
• Add node-to-node connections with optional text and notes.
• Stylize nodes, callouts, links and connections to add more meaning and improve readability.
• Save and reuse style settings within and across open mindmaps.
• Add stickers, tags, callouts and node groups to call out and visibly organize information.
• Quick search of node and connection titles and notes, including filtering options.
• Zoom in or enable focus mode to focus on certain ideas or zoom out to see the bigger picture.
• Enter focus mode to better view and understand portions of the map.
• Quickly brainstorm ideas with the brainstorming interface and worry about where those ideas belong in the mindmap later.
• Unlimited undo/redo of any change.
• Automatically and manual saving supported.
• Colorized node branches.
• Open multiple mindmaps with the use of tabs.
• Built-in and customizable theming.
• Gorgeous animations.
• Import from OPML, FreeMind, Freeplane, PlainText/Markdown (formatted), Outliner, Portable Minder, filesystem and XMind formats.
• Export to CSV, FreeMind, Freeplane, JPEG, BMP, SVG, WebP, Markdown, Mermaid, Mermaid Mindmap, OPML, Org-Mode, Outliner, PDF, PNG, PlainText, filesystem, XMind and yEd formats.
• Printer support.

Clapper is a modern media player designed for simplicity and ease of use. Powered by GStreamer and built for the GNOME desktop environment using GTK4 toolkit, it has a clean and stylish interface that lets you focus on enjoying your favorite videos.

Clapper uses a playback queue where you can add multiple media files. Think of it like a playlist that you can build. You can easily reorder items or remove them from the queue with a simple drag and drop operation.

Flatseal is a graphical utility to review and modify permissions from your Flatpak applications.

Download videos from websites with an easy-to-use interface. Provides the following features:

• Convert videos to MP3
• Supports password-protected and private videos
• Download single videos or whole playlists
• Automatically selects a video format based on your quality demands

Based on yt-dlp.

vokoscreenNG is a powerful screencast creator in many languages to record the screen, an area or a window. Recording of audio from multiple sources is supported. With the built-in camera support, you can make your video more personal.

X11:

• Tools: Countdown, Snapshot, Systray, Magnifying glass, Timer, Showclick, Halo, Darkmode, Global keyboard shortcuts, Build-in Videoplayer, Camera
• Format: mkv, gif, mp4
• Video: H.264, gif
• Audio: mp3, opus

Wayland:

• Note: Vokoscreen for Wayland is a standalone development and has nothing to do with X11
• Tools: Countdown, Snapshot, Convert, Separated-audio-tracks
• Format: mkv
• Video: H.264
• Audio: mp3, opus
• After record you can convert into webm, gif or mp4.

vokoscreenNG is a modern full replacement for vokoscreen, both written by Volker Kohaupt. The main difference is that vokoscreen uses ffmpeg as base, while vokoscreenNG has been rewritten from scratch and is based in GStreamer.

Easy Effects is an advanced audio manipulation tool. It includes an equalizer, limiter, compressor and a reverberation tool, just to mention a few. To complement this there is also a built in spectrum analyzer.

Easy Effects is the successor to PulseEffects. Easy Effects only supports PipeWire's audio server. PulseAudio users should instead use PulseEffects.

Because Easy Effects uses the default PipeWire sound server it will work with most, if not all, applications you use. All supported applications are presented in the main window, where each can be enabled individually.

Besides manipulating sound output, Easy Effects is able to apply effects to an input device, such as a microphone. This is, for example, useful in audio recording, but it also works well during voice conversations.

When Easy Effects is launched it will conveniently remember the configuration used in the last session. It is also possible to save all the current settings as profiles.

Helix is a terminal-based text editor inspired by Kakoune / Neovim and written in Rust.

• Vim-like modal editing
• Multiple selections
• Built-in language server support
• Smart, incremental syntax highlighting and code editing via tree-sitter

qView is a Qt image viewer designed with minimalism and usability in mind. It is designed to get out of your way and let you view your image without excess GUI elements, while also being flexible enough for everyday use.

GST is a GTK system utility designed to stress and monitor various hardware components like CPU and RAM.

GWE is a GTK system utility designed to provide information, control the fans and overclock your NVIDIA video card and graphics processor.

The Nextcloud desktop client allows you to keep one or more folders full of your photos, videos and documents synchronized with your server. Any file you add, modify or delete in the synced folders on your desktop or laptop will show up, change or disappear on the server and all other connected devices. Thanks to the client, you can work with your files even when you are not online!

0 A.D. is a real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of thirteen ancient civilizations, each depicted at their peak of economic growth and military prowess.

The fourteen factions are: Three of the Hellenic States (Athens, Sparta and Macedonia), two of the kingdoms of Alexander the Great's successors (Seleucids and Ptolemaic Egyptians), two Celtic tribes (Britons and Gauls), the Romans, the Persians, the Iberians, the Carthaginians, the Han, the Mauryas and the Kushites. Each civilization is complete with substantially unique artwork, technologies and civilization bonuses.

RawTherapee is a powerful, cross-platform raw photo processing program. It is written mostly in C++ using a GTK+ front-end. It uses a patched version of dcraw for reading raw files, with an in-house solution which adds the highest quality support for certain camera models unsupported by dcraw and enhances the accuracy of certain raw files already supported by dcraw. It is notable for the advanced control it gives the user over the demosaicing and development process.

RawTherapee is designed for developing raw files from a broad range of digital cameras, as well as HDR DNG files and non-raw image formats (JPEG, TIFF and PNG). The target audience ranges from enthusiast newcomers who wish to broaden their understanding of how digital imaging works to semi-professional photographers. Knowledge in color science is not compulsory, but it is recommended that you are eager to learn and ready to read our documentation (RawPedia) as well as look up basic concepts which lie outside the scope of RawPedia, such as color balance, elsewhere.

Of course, professionals may use RawTherapee too while enjoying complete freedom, but will probably lack some peripheral features such as Digital Asset Management, printing, uploading, etc. RawTherapee is not aimed at being an inclusive all-in-one program, and the open-source community is sufficiently developed by now to offer all those peripheral features in other specialized software.

Rosegarden is a general-purpose music composition and editing environment that offers a mixture of features inspired by MIDI sequencers, score editors, and DAWs. Rosegarden offers a variety of extensions that work in conjunction with LilyPond to produce beautiful scores that often require little or no manual editing, and it generally does a good job of rendering human MIDI performances as legible notation.

Rosegarden is ideal for the small scale home artist who wishes to use one tool to handle a music project from start to finish. For example, you can record your musical idea with a MIDI keyboard, write out transposing parts for the members of a brass band, and record the band playing these parts all in the same document in the same application. Rosegarden supports a variety of import and export formats, and works well in conjunction with other applications.

Sayonara's goals are intuitive usability, speed and low resource consumption.

(Automatically) create playlists from local files, streams or podcasts organized in tabs.

Powerful media library with 3 different view modes and tag editor.

Many plugins such as equalizer, spectrum analyzer, audio converter, bookmarks.

Text editor that provides advanced features with high performance

• Written in Rust for performance and safety
• Syntax highlighting built in for most languages
• Provides project-based editing
• Integrated git management

Create notebooks and take notes in markdown

Some features include:

• Almost WYSIWYG markdown rendering
• Searchable through GNOME search
• Highlight and strikethrough text formatting
• App themeing based on notebook color
• Trash can
• Markdown document
• Optional line numbers
• Optional auto save
• Open links with Control-Click
• Link to other notes in Folio
• Automatically create links for bare URL's and e-mail addresses

Bottles lets you run Windows software on Linux, such as applications and games. It introduces a workflow that helps you organize by categorizing each software to your liking. Bottles provides several tools and integrations to help you manage and optimize your applications.

Features:

• Use pre-configured environments as a base
• Change runners for any bottle
• Various optimizations and options for gaming
• Repair in case software or bottle is broken
• Install various known dependencies
• Integrated task manager to manage and monitor processes
• Backup and restore

Qmmp is a cross-platform audio-player, written with the help of the Qt library. It has two different user interfaces, Winamp/XMMS skins support and other features provided by plugins.