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 twelve ancient civilizations, each depicted at their peak of economic growth and military prowess.

The twelve 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, and the Mauryans. Each civilization is complete with substantially unique artwork, technologies and civilization bonuses.

Zero Install is a decentralised cross-distribution software installation system.

Features include full support for shared libraries (with a SAT solver for dependency resolution), sharing between users, and integration with native platform package managers.

It supports both binary and source packages, and works on Linux, OS X, Unix and Windows systems. It is fully Open Source.

4Pane is a highly configurable Linux filemanager. It has dual twin-panes, each of which has a directory tree-view pane and a detailed-list pane for files.

In addition to standard file manager things, it offers multiple undo and redo of most operations (including deletions), archive management including 'virtual browsing' inside archives, multiple renaming/duplication of files, a terminal emulator and user-defined tools.

Add64 is an additive modular software synthesizer for generating sounds. Unlike other software synthesizers -- that use a skeuomorphic interface of knobs, sliders and buttons, Add64 displays a spectral graph and allows the user to modify the oscillators and related parameters.

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.

CMake is an open source, cross platform build system that can build, test, and package software. CMake GUI is a graphical user interface that can create and edit CMake projects.

The Charles River RC Flight Simulator (CRRCSim) is a flight simulator to test fly model aircraft. CRRCSim comes with over 15 different types of model gliders and planes, and lets you fly in 3 different locations.

This is free, open source multiplatform (java) application which allows you to play ANY card game.

The game is designed especially to play collectible card games like Magic the Gathering or Doomtrooper over network.

To play those games you need to own (scanned) images of card, which are not part of this package.

Some can be easily downloadable from internet, but be aware of copyrights. The default deck and background is free of copyright Also please feel free to add your own backgrounds to ~/CardManager/data/backgrounds and of course enhance collection under ~/CardManager/collection .

Critical Mass (also known as Critter) is a top-down shoot-em-up game where your home world has been infested by an aggressive army of space critters and you are required to pilot a small spacecraft to destroy them all.

GNUSim8085 is a simulator for that emulates the Intel 8085 -- an 8 bit microprocessor that was first released in 1977. This simulator features a keypad for writing assembly code with ease, as well as stack, memory and port viewers which are useful for debugging 8085 assembly code.

scanmem is a simple interactive debugging utility, used to locate the address of a variable in an executing process. This can be used for the analysis or modification of a hostile process on a compromised machine, reverse engineering, or as a "pokefinder" to cheat at video games. GameConqueror aims to provide a CheatEngline-alike interface for scanmem, it's user-friendly and easy to use.

Features:

• Locking on multiple variables
• Memory Viewer/Editor
• ... many to be done

LibreAtlas is an open source geography application for viewing and browsing digital atlases. LibreAtlas opens digital atlases in the libreatlas database format. The upstream LibreAtlas homepage has a list of compatible atlases available for download.

You pilot your ship through the dreaded "Maelstrom" asteroid belt -- suddenly your best friend thrusts towards you and fires, directly at your cockpit. You raise your shields just in time, and the battle is joined.

The deadliest stretch of space known to mankind has just gotten deadlier. Everywhere massive asteroids jostle for a chance to crush your ship, and deadly shinobi fighter patrols pursue you across the asteroid belt. But the deadliest of them all is your sister ship, assigned to you on patrol. The pilot, trained by your own Navy, battle hardened by months in the Maelstrom, is equipped with a twin of your own ship and intimate knowledge of your tactics.

The lovely Stratocaster R&R facility never sounded so good, but as you fire full thrusters to dodge the latest barrage you begin to think you'll never get home...

PolyBoRi is a special purpose computer algebra system for computations in Boolean Rings.

The core of PolyBoRi is a C++ library, which provides high-level data types for Boolean polynomials and related structures. As a unique approach, binary decision diagrams are used as internal storage type for polynomial structures. On top of this, we provide a Python interface for parsing of complex polynomial systems, as well as for sophisticated and extendable strategies for Gröbner base computation.

Rodent is fast, small and powerful parallel file manager. All operations are done in threads, and command are inherited from the GNU or BSD operating systems to reduce the possibility of bugs to a minimum. Plugin support for mounting devices, executing applications, monitoring and controlling system processes, navigating SMB (Windows) network and mounting FUSE and network devices (NFS, sshfs, obexfs, cifs, curlftpfs, ecyrptfs) is included by default.

• GNU's not Unix, but Unix is a beast; its plural form is Unixen.

You probably want to install this application if you want a small, fast and powerful filemanager that does not assume you are stupid, and you feel comfortable with full command line access to system commands.

YAGF is a program used to control image scanning and text recognition operations from a single control center. Apart from th scanner almost any graphics file may be used as a source. Also YAGF possesses some image-enhancement capabilities like the auto-contrast adjustement and noise removal that make the scanned pages recognition less error-prone.

Other features include:

• PDF and multi-page TIFF export with the subsequent text recognition
• Recognizing text typed in very small letters
• Spellchecker-assisted optional correction
• Text is split into blocks automatically
• Recognizing text written in two languages (like texts in textbooks or technical texts written in one language and containing some terms in other language.

Once installed, YAGF inspects its environment and automatically finds required external programs (like Tesseract OCR and its data files) if they are present so that there is no need to configure it manually by finding and entering program paths. If some required tools are not present in the system the user will be notified of this.

YAGF's Intended audience includes everybody who needs to recognize scanned text, but the people who should benefit most are translators, teachers, digitized text libraries makers and those who switch their business from paper-based to paperless workflow.

Abe's Amazing Adventure is a scrolling, platform-jumping, key-collecting, ancient pyramid exploring game, vaguely in the style of similar games for the Commodore+4.

The game is intended to show young people (I'm writing it for my son's birthday) all the cool games they missed.

AbiWord is a free word processing program similar to Microsoft® Word. It is suitable for a wide variety of word processing tasks.

AbiWord allows you to collaborate with multiple people on one document at the same time. It is tightly integrated with the AbiCollab.net web service, which lets you store documents online, allows easy document sharing with your friends, and performs format conversions on the fly.

ADMeshGUI is a desktop application to view and manipulate STL 3D models. It supports viewing STL files and export them in STL, VRML and DXF formats.

Models can be viewed in 3 modes: solid, solid with highlighted edges and wireframe; they can also be manipulated, such as scaled, mirrored, rotated or translated. Files can also be split, merged or repaired.

Aeskulap is a viewer for medical images with support for the DICOM format.

Alexandria is an application that allows you to manage your book library. It lets you build and keep a detailed database (on your local machine) of information about books you own and have read.

Alexandria also allows you to rate books, note when you have read them, and even track who you have loaned books out to. It also has interfaces with a online book information sources so you don’t have to type in all the information about a book, and also provides book cover art for many books.

Do you like old school deathmatch with modern features? How about rich, colorful, arcadelike atmospheres? How about...retro Sci Fi? Then you're going to love what Alien Arena has in store for you! This game combines some of the very best aspects of such games as Quake III and Unreal Tournament and wraps them up with a retro alien theme, while adding tons of original ideas to make the game quite unique.

Alien Arena is a furious frag fest with arenas ranging from the small, to the massive. With a large built-in player base, it's never hard to find a good match going on, at any hour of the day. The community is friendly, as well as prolific. Dozens of maps, models, and various accessories have been created by community members to add on to the game experience.

The CRX engine that powers Alien Arena has received very signifigant upgrades in recent releases, resulting not only in stunning new visuals, but vastly increased performance as well.

Alt-Ergo is an automated theorem prover implemented in OCaml. It is based on CC(X) - a congruence closure algorithm parameterized by an equational theory X. This algorithm is reminiscent of the Shostak algorithm. Currently CC(X) is instantiated by the theory of linear arithmetics.

Alt-Ergo also contains a home made SAT-solver and an instantiation mechanism by which it fully supports quantifiers.

Amoebax is a cute action puzzle game where pairs of amoeba fall down, and when you match 4 colored amoeba in a row or column they disappear. There are 6 levels of difficulty, and also a split-screen mode to battle the amoeba-matching fun with a friend.

Amsynth is a software synthesis that provides a classic subtractive synthesizer topology, with:

AntiMicro is a graphical program used to map keyboard keys and mouse controls to a gamepad. This program is useful for playing PC games using a gamepad that do not have any form of built-in gamepad support.

AntiMicro was inspired by QJoyPad but has additional features.

APX is a QIX clone with minor differences in gameplay from the original.

• Use arrow keys to move around the perimeter of square, hold down Space or Shift to cut into the area. Connect back to perimeter to claim the area.
• Your objective is to claim 75% or more to proceed to the next level
• Claiming with Shift key will be slower but give you double the points.
• For every claimed full percent over 75% you get extra 1000 points.

Ardour is a digital audio workstation that permits you to record and create music. Ardour supports multi-track recording, and allows you to use plug-ins to create music in a virtual studio.

Ardour is intended to be a one-stop complete solution for your digital audio needs.

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

Included is an integrated development environment that can be used to develop and upload code to compatible micro-controllers.

Armagetron is a 3D Tron-inspired game where the player controls a motorcycle that emits a immovable wall behind it. Gameplay consists of 2 of these cycles battling to trap each other to force their opponent to crash into the wall.

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.

Ascii Design is a free program, based on figlet engine, that enables you to create awesome ascii art text.

You can create art based text for many types of decorations for web sites, e-mail, text files etc...

Ascii Design is able to use dozens of special fonts to create various styles of ascii arts.

Astromenace is a 3D scrolling space shooter with amazing graphics and intense gameplay.

You have a range of vehicles to choose from and numerous weapons that can be upgraded as you repel wave after wave of spaceships and dodge space objects.

Asylum is a Linux port of the game "Asylum" written originally for the Acorn Archimedes.

Enter the surreal world inside a young boy's brain and help destroy malfunctioning brain cells.

Atomic Tanks is a turn based artillery strategy game where opponents take turns to bombard each other with a wide array of different weapons. To make things more interesting, Atomic Tanks also features desctructable landscapes, teleporting, parachutes and different weather conditions.

Audacity® is a free, easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. The interface is translated into many languages.

You can use Audacity to:

• Record live audio
• Convert tapes and records into digital recordings or CDs
• Edit WAV, AIFF, FLAC, MP2, MP3 or Ogg Vorbis sound files
• Cut, copy, splice or mix sounds together
• Change the speed or pitch of a recording
• Apply a wide range of other effects to audio recordings

Two castles, separated by a mountain, try to defeat each other with their cannonballs, either by killing the opponent's king or by weakening the opponent enough so that the king capitulates.

Ballerburg was originally written 1987 by Eckhard Kruse, for the Atari ST machines (which were brand new computers at that point in time). Over 25 years later, here's finally the adaption of the original source code to modern operating systems.

Ballz is a platformer with some puzzle elements. You take control of a ball which is genetically modified by the British secret service.

Your mission is to rescue captured British soldiers from a prison in Iran.

Barrage is a fast paced shooter game where the objective is to destroy targets like soldiers, tanks and jeeps within 3 minutes.

The player controls a gun that shoots small and large grenades at fast moving targets and you need to manage your aim, ammo and re-load times carefully.

Berusky is a 2D 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.

Billiards is a 3D cue sports simulator that allows you to play different variations of billiards and pool. Billiards features the Carom billiards games of straight rail, balk line and cushion games, as well as eight-ball pool and nine-ball pool.

Biloba is a board game for 2 to 4 players that involves moving pawns around on an octagonal board with square cells. The goal of bilboa is to remove all of your opponent's pawns. Bilboa can be played both against AI and real opponents.

Blender provides a broad spectrum of modeling, texturing, lighting, animation and video post-processing functionality in one package. Through its open architecture, Blender provides cross-platform interoperability, extensibility, an incredibly small footprint, and a tightly integrated workflow. Blender is one of the most popular Open Source 3D graphics applications in the world.

Aimed at media professionals and artists world-wide, Blender can be used to create 3D visualizations and still images, as well as broadcast- and cinema-quality videos, while the incorporation of a real-time 3D engine allows for the creation of 3D interactive content for stand-alone playback.

Blob Wars: Metal Blob Solid is a 2D side scrolling platformer where you control Bob, (a blob secret agent) through 25 missions to rescue other blobs and stop the evil alien leader: Galdov.

bpython is a graphical alternative for the Python console. It provides a number of additional features that are not possible with the regular (terminal based) Python console, including: syntax highlighting, command autocompletion, parameter lists for built in Python functions, and the ability to save code to a file.

Battle tanks is a fun filled old school style scrolling battle tank game.

It has original cartoon style graphics and sound track and is multiplayer focused. Choose from 3 different vehicles and destroy your enemies using a large assortment of weapons.

Bustle draws sequence diagrams of D-Bus activity.

It shows signal emissions, method calls and their corresponding returns, with time stamps for each individual event and the duration of each method call. This can help you check for unwanted D-Bus traffic, and pinpoint why your D-Bus-based application isn't performing as well as you like. It also provides statistics like signal frequencies and average method call times.

bzflag is a multiplayer tank battle game with "retro" 3D style graphics.

Calibre is used to manage a collections of e-books in many popular formats. Books may be viewed, or converted between e-pub, MOBI, and similar formats. Searching by author, title, other metadata, and user defined characteristics is possible.

This is one of the most versatile and feature-full e-book viewers.

Catfish is a small, fast, and powerful file search utility. Featuring a minimal interface with an emphasis on results, it helps users find the files they need without a file manager. With powerful filters such as modification date, file type, and file contents, users will no longer be dependent on the file manager or organization skills.

cave9 is 3D cave exploration game based on the SF-cave game. You control a jet that maneuvers through a series of caves and the objective of the game is to avoid colliding with the cave walls.

cbrPager is a simple comic book reader application with the ability to change pages and zoom. It features the ability to open and read cbr, cb7 and cbz comic book archives that contain PNG and JPEG images.

ccgo allows you to play the popular chinese strategy game "Go" agains your computer or other players on the internet.

Celestia provides photo-realistic, real-time, three-dimensional viewing of the Solar System, the galaxy and the universe.

It is an easy to use, freely-distributed, multi-platform, open source, software package which has become a valuable tool for astronomy education. Used in homes, schools, museums and planetariums around the world, it also is used as a visualization tool by space mission designers.

Childsplay is a suite of educational games for young children. The aim is to be educational and at the same time fun to play. Available games differ in style and difficulty, and should be appropriate for children approximately 2 to 6 years old.

Available games include:

Chinese Calendar is a calendar application tailored to Chinese users. It allows you to easily find the names and dates of festivals and also query solar terms typically used in China.

Chocolate Doom is an original source port of the popular DOOM game for the PC.

It accurately reproduces the playing experience of the original DOOM game and is compatible with the numerous mods and levels designed for the original.

ClipIt is a lightweight, fully featured GTK+ clipboard manager. It was forked from Parcellite, adding additional features and bug-fixes to the project.

ClipIts main features are:

• Save a history of your last copied items
• Search through the history
• Global hot-keys for most used functions
• Execute actions with clipboard items
• Exclude specific items from history

Code::Blocks is a highly extensible Integrated Development Environment (IDE) for the C, C++ and Fortran programming languages. It features support for a wide range of compilers, parallel builds, multi-target projects, and also provides an interface with GNU GDB.

The code editor in Code::Blocks features: syntax highlighting, code folding, a tabbed interface, code completion, a class browser and smart indenting.

The ColorHug CCMX loader tool automatically downloads and installs user-submitted device correction matrices onto your Hughski ColorHug display colorimeter.

Selecting a correction matrix maximises the accuracy of the ColorHug but using the default matrix will give most users an acceptable calibration result.

The ColorHug flash update tool automatically downloads new versions of the firmware on to your Hughski ColorHug display colorimeter. Firmware releases will add features, fix bugs and improve accuracy.

Using command line arguments, this tool can also flash custom flash files to the device.

Colossus is a JAVA based clone of Avalon Hill's "Titan" Board game.

It is a fantasy board game where you lead an army of mythological creatures against other players.

Coot is a powerful macromolecular model-building tool for analysing X-ray data and models (i.e. proteins, ligands, RNA and DNA). There are many tools for model manipulation and building, such as minimization, molecular superposition, fragment rotation/translations, rotamer-fitting, de novo building and refinement.

Coot is used by scientists using X-ray crystallography for analysis of proteins, electron density maps, protein interactions and drug design.

Coq is a formal proof management system. It allows for the development of theorems through first order logic that are mechanically checked by the machine. Sets of definitions and theorems can be saved as compiled modules and loaded into the system.

This package provides Coqide, a lightweight IDE for Coq.

Crossfire is an open source RPG with numerous maps that can be explored for treasures and artifacts.

DevAssistant can help you with creating and setting up basic projects in various languages, installing dependencies, setting up environment etc. There are three main types of functionality provided:

• Creating projects in various languages/frameworks
• Modifying local projects
• Preparing environment for upstream projects or custom tasks

List of currently supported languages includes C, C++, Java, Node.js, Perl, PHP, Python and Ruby.

Diffuse is a tool for visually merging and comparing text files side by side. Diffuse is can visually compare an 2 or more text files against each other, and also allows users to manually adjust line matching and directly edit files. It also supports viewing revisions and merging files in source control management systems (SCM),with support for popular SCMs such as Bazaar, Git, Mercurial, and SVN.