A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.
SuperTuxKart is a kart racing game featuring Tux and friends. It is a fun-racer game, focusing on fun and ease of play.
A Jump and Run game like Super Mario World with an advanced Editor and highly detailed Graphics based on SDL with a OpenGL accelerated Graphics Renderer developed in C++. Runs under Linux, Windows and Mac and can be easily ported to other platforms.
A strategy game with a high fantasy theme
The Battle for Wesnoth is a Free, turn-based tactical strategy game with a high fantasy theme, featuring both single-player, and online/hotseat multiplayer combat. Fight a desperate battle to reclaim the throne of Wesnoth, or take hand in any number of other adventures.
GWFreaks is a character builder for Guild Wars, allowing you to plan you skill in advance, search for skill on the map. The project exists since the beginning of Guild Wars. Check out www.gwfreaks.com.
Real-time 3D visualization of space
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
Another version of the simple action game modeled after the lightcycle sequence of the movie Tron.
A free sing-along karaoke game for your PC
Karaoke sing-along game for PC which is similar to Playstation® Singstar™. It allows up to six players to sing along with music using microphones in order to score points, depending on the pitch of the voice and the rhythm of singing.
Low-latency, high quality voice chat for gamers
Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. It includes game linking, so voice from other players comes from the direction of their characters, and has echo cancellation so the sound from your loudspeakers won't be audible to other players.
A graphical environment for DOSBox
D-Fend Reloaded is a graphical environment for DOSBox. D-Fend Reloaded is a successor of the discontinued D-Fend. Both environments look alike and D-Fend Reloaded contains all features of D-Fend. Even the D-Fend config files can be used.
An award-winning drawing program for children ages 3 to 12
Tux Paint is a free, award-winning drawing program for children ages 3 to 12. It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. Kids are presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents and teachers, or downloaded from 3rd parties. Tux Paint is available for Linux, BSD, Windows, Mac OS X and Haiku operating systems.
Goal of this project is a freeware game similar to the PSX game "Kula World" / "Roll Away". It is designed platform independent, written in C++ and using the following libraries: OpenGL, SDL (Simple DirectMedia Layer), libjpeg, LUA, GLSL-Shader.
PokerTH is a poker game written in C++/Qt. You can play the popular Texas Hold'em poker variant against up to nine computer-opponents or play internet games with people all over the world. This poker engine is available for Linux, Windows and Mac
A free transportation simulator game
Simutrans is a cross-platform simulation game where players try to successfully manage transportation systems between places by land, air, and water for passengers, mail, and goods. Planes, ships, trains, trams, trucks, buses, or monorails are at your disposal, but factories operate based on contracts and passengers can only travel to their set destinations.
GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering of 3D scenes in graphic applications.
Colonize the New World.
FreeCol is an open version of Colonization. It is a Civilization-like game in which the player has to conquer the new world.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
0 A.D. (pronounced "zero ey-dee") is a cross-platform 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 ancient civilizations, each depicted at their peak of economic growth and military prowess.
Gens is a win32/unix Sega Genesis / Sega CD / Sega 32X emulator.
Java applications to control a model railroad layout.
Java interfaces and sample implementations for controlling a model railroad layout from a personal computer. JMRI is intended as a jumping-off point for hobbyists to build their own layout controls. Includes the DecoderPro and PanelPro applications.
This is one of the most popular Doom source ports. It is available for DOS, Windows, Linux and Mac OS X, and should build on any POSIX platform which supports SDL. It enhances Doom with things like TCP/IP networking, OpenGL renderer, Heretic support and much more.
VASSAL is a game engine for creating electronic versions of traditional board and card games. It provides support for game piece rendering and interaction, and supports play by email or over a live connection.
OpenSource OpenGL Multiplayer Multiplatform Battle Zone capture the Flag. 3D first person tank game. Project has moved to Github: https://github.com/BZFlag-Dev/bzflag
RTS game with the theme of Strategy by Design
You command the forces of “The Project” in a battle to rebuild the world after mankind has almost been destroyed by nuclear missiles. The game offers a full campaign with optional (but strongly recommended!), videos, battle against four factions, multi-player and single-player skirmish modes, and an extensive tech tree and a full unit designer. Multi-player is also cross-platform, battle your friends with any OS, Windows, Linux or Mac, it all works seamlessly! We also offer 100% portable Windows builds, take the game and install it anywhere! Our source repo is now at https://github.com/Warzone2100/warzone2100 If you are using linux, and want a .deb, then please get the latest version available from http://www.playdeb.net/app/Warzone2100 (They are not affliated with us, but they do have the latest builds!) Warzone 2100 works on both 32 & 64 bit Windows Vista or higher, 32 or 64 bit Linux, 32 or 64 bit Macs.
"Tux, of Math Command" is a math drill game starring Tux, the Linux Penguin. Lessons are included from simple number typing through addition, subtraction, multiplication, and division of positive and negative numbers. It is intended for kids ~4-10.
The ultimate cataloguer
Data Crow allows you use the standard movie & video (divx, xvid, DVD, Blu-ray, etc), book (and eBooks), images, games & software, music (mp3 and other music files) cataloging modules. Beside these module (which you can change to fit your requirements) you can create new modules (want to catalogue your stamps, equipment, or anything else?). The GUI is skinnable. Data Crow allows you find information on your items through services such as Amazon, Imdb.com, Sourceforge.net, Softpedia, Ofdb, MusicBrainz and many others. Reporting (based on XLST stylesheets and graphs), loan administration, item importing & exporting, backup & restore, web service and many other optional features are waiting for you..