TIC-80 is a free and open source fantasy computer for making, playing and sharing tiny games.With TIC-80 you get built-in tools for development: code, sprites, maps, sound editors and the command line, which is enough to create a mini retro game.Games are packaged into a cartridge file, which can be easily distributed. TIC-80 works on all popular platforms. This means your cartridge can be played in any device.To make a retro styled game, the whole process of creation and execution takes place under some technical limitations: 240x136 pixel display, 16 color palette, 256 8x8 color sprites, 4 channel sound, etc.Note: Access to all devices permission required (--device=all) so that gamepads can be used with this Flatpak.

TIC-80

Fantasy computer for making, playing and sharing tiny games

System glows and hums with enchanting activity. Launch System and peek behind the screen to see how to change your cursor to a wedge of cheese!For the best experience, enjoy System as part of Hack episodes with your friends in the Clubhouse guiding you through its features.

System

System lets you be part of the magic that keeps your computer humming!

Kids learn how to code, develop creative problem-solving skills and build confidence in a fun and safe environment.

Hack

The destination for kids to learn how to code

Artikulate is a pronunciation trainer that helps improving and perfecting a learner's pronunciation skills for a foreign language. It provides courses with native speaker recordings for several training languages. The learner downloads those courses, selects a category of phrases to train, then starts with recording her/his own voice when speaking the phrases and comparing the results to the native speaker's recordings by listening to both. By adjusting and repeating the own pronunciation, the learner can improve his/her skill.
    

Artikulate

Blinken is based on an electronic game released in 1978, which challenges players to remember sequences of increasing length. On the face of the device, there are 4 different color buttons, each one with their own distinctive sound. These buttons light up randomly, creating the sequence that the player must then recall. If the player is successful in remembering the sequence of lights in the correct order, they advance to the next stage, where an identical sequence with one extra step is presented. If they are incorrect, the game is lost, and the player must start again from the beginning. The goal is to get a high score - each step in the sequence is worth one point, so correct entry of a sequence of 8 lights is worth 8 points on the high score table.
    

Blinken

KmPlot is a program to plot graphs of functions, their integrals or derivatives. The graphs can be colorized and the view is highly configurable, is scalable, and can be zoomed. The program features a powerful mathematical parser, different plot types (cartesian, parametric, polar, implicit, differential), and provides simple mathematical tools like for finding maximum/minimum of a function. Parametrized functions can be visualized by adjusting the variable parameter via a slider. Plots can be exported as bitmap format pictures (BMP, PNG) and can be printed.
    

KmPlot

Decode the world and help the world decode you. Use this translator for access and learn about many different languages!
    

Words

Midterm for Linux is completely free to use. It is a note-taking app with study tools to help you study better. You can use it to prepare for exams.Features:Write notes with quizzes for studying (cloze deletion, image occlusion inspired from Anki).Sync notes with your phone and/or tablet.Study offline (offline accessible).Dark mode.Powerful visual editor.Keep track of notes to study before exams.Collaborate and study with your friends.Support nested folders.and many more.

Midterm: Notes & Flashcards

Cantor is a front-end to powerful mathematics and statistics packages. Cantor integrates them into the KDE Platform and provides a nice, worksheet-based, graphical user interface. It supports environments for KAlgebra, Lua, Maxima, R, Sage, Octave, Python, Scilab, and Qalculate!
    

Cantor

Pop open the magical pages that offer a new approach to interacting with the beloved Aesop's Fables! Read and touch these time honored stories and then hack the pages to make them your own. The art, sounds and text can all be hacked, creating your unique fables you can share with others.

Fablemaker

Enter the world of Aesop's fables like never before! Interactive stories where you can customize characters, texts and sounds, hacking into its code in this absorbing and educational app.

Do not judge a book by its cover or lack of color! This time, you get to decide what color this world should be. Dive into the magical world of CSS and hack the world into a unique burst of color and light revealing hidden objects and clues. Learn basic CSS techniques used to color and set attributes to the 3D objects in this unique town. Want to paint the rest of the town? Well, get through the house first, and you might just get to leave through the front door.
    

White House

You're in a dream...or maybe a nightmare! All of the toys have come alive and are chasing you. Fight them off and run to survive for as long as you can. Want the ultimate challenge? Try out Math Mode and use your number skills as a weapon to fight back the evil toys!

Midnightmare Teddy

Want to wisely manage money? Learn financial planning basics and track your family's finance, make your own budget and learn how to make every penny count!
    

Finance

“All musicians are subconsciously mathematicians” – Monk“Music is a hidden arithmetic exercise of the soul, which does not know that it is counting.” ~ LeibnizMusic Blocks is a programming language and collection of manipulative tools for exploring musical and mathematical concepts in an integrative and fun way.

Music Blocks

A collection of tools for exploring fundamental musical concepts in a fun way.

Lyrics is an application that displays lyrics for songs you are listening to, it query the song through MPRIS protocol, search, downloads the lyric file and display it scrolling syncronized.

Lyrics


   Memento is a free and open source, mpv-based video player that makes studying
Japanese easier with a built in popup dictionary, Anki integration, and more.
  
      Features:
      
        Memento uses Yomichan's dictionary format and supports all the same dictionaries
        Automates Anki card creation through AnkiConnect
        Grammar aware search matches terms in subtitles regardless of most inflections
        Supports mpv plugins, upscalers, and shaders
        Supports mpv configuration files such as input.conf for rebinding keys and mpv.conf for configuring mpv
        Supports streaming from many websites through youtube-dl
      
    

memento

An mpv-based video player for studying Japanese

Speak is a talking face.  Anything you type will be spoken aloud using a speech synthesizer.  You can adjust the accent, rate and pitch of the voice as well as the shape of the eyes and mouth.  This is a great way to experiment with a speech synthesizer, learn to type or just have fun making a funny face.
    

Speak

An animated face that speaks whatever you type

Abacus lets the learner explore different representations of numbers using different mechanical counting systems developed by the ancient Romans and Chinese. There are several different variants available for exploration.
    

Abacus

A tool for simple arithmetic calculations

Feeel is an open-source app for doing simple at-home exercises. It holds the acclaimed full body scientific 7-minute workout regime and allows creating custom workouts as well. While the app currently contains a limited amount of exercises, the plan is to drastically expand the number of both exercises and workouts with the help of the community.Features:Mobile first, runs on Linux and AndroidPrivate (fully offline, no tracking, no ads)Translated into several languagesFree and open-source. Contribute at https://gitlab.com/enjoyingfoss/feeel/wikis.

Feeel

A simple home workout/exercise app that respects your privacy

Open your chakras with your voice. Choose between the different chakras and their frequencies. Meditate with guidance.
    

Open Chakra Toning

Drumstick Metronome is a MIDI metronome with Qt5 interface, based on the ALSA sequencer. Intended for musicians and music students, it is a tool to keep the rhythm while playing musical instruments. It uses MIDI for sound generation instead of digital audio, allowing low CPU usage, and very accurate timing thanks to the ALSA sequencer.

Drumstick Metronome

Drumstick MIDI Metronome based on the ALSA Sequencer


           SUMO allows modelling of intermodal traffic systems including road vehicles, public transport and pedestrians.
           Included with SUMO is a wealth of supporting tools which handle tasks such as route finding, visualization,
           network import and emission calculation. SUMO can be enhanced with custom models and provides various APIs
           to remotely control the simulation.
        
    

SUMO

From fitness lovers to fitness lovers – get your health organized with WGER, your Workout Manager!Have you already found your #1 fitness app and do you love to create your own sports routines? No matter what type of sporty beast you are – we all have something in common: We love to keep track of our health data &lt;3So we don’t judge you for still managing your fitness journey with your handy little workout log book but welcome to 2021!We have developed a 100% free digital health and fitness tracker app for you, sized down to the most relevant features to make your life easier. Get started, keep training and celebrate your progress!wger is an Open Source project and all about:Your body: No need to google for the ingredients of your favourite treats – choose your daily meals from more than 78000 products and see the nutritional values. Add meals to the nutritional plan and keep an overview of your diet in the calendar.Your workouts: You know what is best for your body. Create your own workouts out of a growing variety from 200 different exercises. Then, use the Gym Mode to guide you through the training while you log your weights with one tap.Your progress: Never lose sight of your goals. Track your weight and keep your statistics.Your data: wger is your personalized fitness diary – but you own your data. Use the REST API to access and do amazing things with it.Please note: This free app is not based on additional fundings and we don’t ask you to donate money. More than that it is a community project which is growing constantly. So be prepared for new features anytime!OpenSource – what does that mean? Open Source means that the whole source code for this app and the server it talks to is free and available to anybody:Do you want to run wger on your own server for you or your local gym? Go ahead!Do you miss a feature and want to implement it? Start now!Do you want to check that nothing is being sent anywhere? You can!Join our community and become a part of sport enthusiasts and IT geeks from all over the world. We keep working on adjusting and optimizing the app customized to our needs. We love your input so feel free to jump in anytime and contribute your wishes and ideas!find the source code on https://github.com/wger-projectask your questions or just say hello on our discord Server https://discord.gg/rPWFv6W

wger

Fitness/workout, nutrition and weight tracker


      KBibTeX is a reference management application which can be used to collect TeX/LaTeX bibliographies and export them in various formats.
    
      KBibTeX can do the following things:
      
        Preview bibliography entries in various formats (Source (BibTeX), Source (RIS), Wikipedia, standard (XML/XSLT), fancy (XML/XSLT), and abstract-only (XML/XSLT)). Additional preview styles become available when bibtex2html is installed.
        Import data in various bibliography file formats such as BibTeX, RIS and ISI (requires bibutils) and export data to PDF (requires pdflatex), PostScript (requires latex), RTF (requires latex2rtf), and HTML.
        Search for the bibliography entries data in online databases (e.g. Google Scholar, ACM, IEEE, arXiv, etc.)
        Preview local or remote (online) resources, e.g. PDF files, linked in the BibTEX entry.
        Find and merge duplicate entries in bibliography.
        Integrate your bibliographies with LaTeX editors such as Kile and LyX.
        Import your Zotero library.
      
    

KBibTeX

BibTeX editor by KDE to edit bibliographies used with LaTeX

Measure is a tool that turns the computer into an oscilloscope. You can easily visualize your voice or even a musical instrument. It provides an interface for the kids to connect with the physical world and an opportunity to view and understand through a visual and statistical representations.
    

Measure

Oscilloscope program for visualizing microphone input

KTurtle is an educational programming environment for learning how to program. It provides all programming tools from its user interface. The programming language used is TurtleScript, which is loosely based on Logo. All commands and messages are translated into the user's language. KTurtle features an intuitive syntax highlighting, simple error messages, integrated canvas to make drawings, an integrated help, slow-motion and step execution.
    

KTurtle

Greenfoot is an integrated development environment using Java or Stride designed primarily for educational purposes at the high school and undergraduate level. It allows easy development of two-dimensional graphical applications, such as simulations and interactive games. It is licensed under the GPL 2.0 with the Classpath Exception.

Greenfoot

Kig is an interactive mathematics software for learning and teaching geometry. It allows to explore mathematical figures and concepts using the computer and also can serve as a drawing tool for mathematical figures. Constructions can be made with points, vectors, lines, and polygons and all elements can be modified directly by using the mouse. Kig helps teachers and students to make conjectures and to understand how to prove geometric theorems.
    

You've landed on a mysterious planet with one mission; find the secret map to locate the hidden bunker. Can you find it? Hack the world to cross perilous lands and the obstacles within. Play to find out if can outsmart the passage.

The Passage

Hack your way through this side scrolling action adventure shooting game

QSpeakers is a simple graphical program that simulates common acoustical enclosures behaviour to help designing loudspeaker systems, based on the loudspeaker driver's Thiele / Small parameters and the chosen enclosure type.This software is mostly useful for do-it-yourself loudspeaker enthusiasts, acoustics teaching, and to a lesser extent, for loudspeaker engineering.

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