FlightGear Flight Simulator: free open-source multiplatform flight sim
Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute.
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.
DivFix++ is yours AVI video repair and preview software. It designed for repair and preview files which are on download from ed2k(emule), torrent, gnutella, ftp. web or any other source on the internet. It can repair AVI and DivX files (for now.)
SimPE is a Tool for editing nearly all aspects of Sims 2, starting from simple Character changes (Skills, Names,Relationships...) up to the creation of new Objects and Color Options, containing Wrappers and Editor for nearly all Sims 2 Filetypes.
Another version of the simple action game modeled after the lightcycle sequence of the movie Tron.
LinCity-NG is a city simulation game. In the game, you are required to build and maintain a city. You can win the game either by building a sustainable economy or by evacuating all citizens with spaceships.
A free racing simulator with excellent physics and graphics.
First-person 3D building and elevator simulator
Skyscraper is a fully featured first-person 3D virtual building simulator, written in C++ and using the OGRE graphics engine (previous versions used Crystal Space). It's flagship feature is an elaborate and realistic elevator simulator.
TORCS, The Open Racing Car Simulator is a highly portable multi platform car racing simulation. It is used as ordinary car racing game, as AI racing game and as research platform. It runs on Linux (x86, AMD64 and PPC), FreeBSD, OpenSolaris, MacOSX and Windows.
"Roberge's Used Robot (RUR) : a Python Learning Environment" is a Python implementation of a "robot environment" as introduced by R. Pattis in 1981. RUR is similar in spirit to GvR, although it uses Python syntax. SEE http://code.google.com/p/rur-pl
Vega Strike is a 3d OpenGL Action Space Sim for Win/Lin/Mac allowing players to trade, bounty hunt, or explore in a vast universe. Vega Strike is mod ready and network playable.
Project Apollo - NASSP (also known as NASSP or NCPP) is an add-on for the Orbiter space flight simulator. Project Apollo simulates the Apollo missions to Earth orbit and the Moon and the planned post-Apollo missions that never flew.
WW2 U-boat simulation
SDL/OpenGL based WW2 german submarine 3d simulation, multilanguage support, multiplatform support with advanced sound and graphics. Please visit dangerdeep.sourceforge.net for any news or visit us in #dangerdeep on freenode IRC.
Open source model airplane simulator
CRRCSim is a model-airplane flight simulation program for Linux with ports to other platforms. Using CRRCSim you can learn how to fly model aircraft, test new aircraft designs, and improve your skills by practicing in the relative safety of your pc.
dopewars is a drug dealing game based on "Drug Wars" by John E. Dell. Originally set in New York, your aim is to deal in drugs and make your fortune...
X-Force is a remake of the classic X-Com-Games.You have to defend earth from alien intruders by intercepting their UFOs, accomplishing tactical ground missions and researching the mystery of the invasion. The game features action, stategy and economic
BillardGL is a GPL 3D OpenGL Billard Simulator for both Windows and Linux, available as RPM, Windows Setup File and pure code.
This is the official home of Race Into Space, the computer version of the Liftoff! board game by Fritz Bronner. It was developed by Strategic Visions and published by Interplay as a disk-based game in 1993 and a CD-ROM in 1994.
SpeedSim is an OGame (ogame.org) combat simulator. It has lots of additional features like BestWorst-Case calculation, multiple simulations, it supports skinning and other useful things. This is also the project page of QtSim (SpeedSim for Linux)
A UNIX/Windows/Linux remake of the DOS-game "stunts", providing modern features like openGL graphics, 3D sound and internet multiplaying. Design your own tracks, choose your opponents and try the most spectacular stunts you've ever seen.
OpenCity is another 3D city simulator. You can build residential, commercial and industrial zones then supply them with necessary goods and watch them grow up. Version 0.0.6stable is now available for download. Any feature request/bug report is welcome
GL-117 is an OpenGL- and SDL-based action flight simulator written in C++. It provides a random terrain generator, lighting effects, sounds, and joystick support.
The Emilia Pinball Project is a pinball simulator for GNU/Linux and other Unix systems. There is only one level to play with, but it is very addictive.
OpenTTD is an open source clone of the Microprose game "Transport Tycoon Deluxe". For more recent versions visit our website: http://www.openttd.org
Note: Widelands is now hosted by launchpad: http://launchpad.net/widelands. Historical downloads and the mailinglist remain on sf.net.