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.
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.
A 3D simulator game where you can drive, fly, and sail
Rigs of Rods is a 3D simulator game where you can drive, fly and sail various vehicles using an accurate and unique soft-body physics engine. Since 2014, the development continued at https://github.com/RigsOfRods/rigs-of-rods UPDATE: 10/30/2016: removed opencandy installers, replaced with zip files.
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.
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)
BillardGL is a GPL 3D OpenGL Billard Simulator for both Windows and Linux, available as RPM, Windows Setup File and pure code.
OpenTTD is an open source clone of the Microprose game "Transport Tycoon Deluxe". For more recent versions visit our website: http://www.openttd.org
PC conversion of famous karaoke game - Singstar. UltraStar allows a computer to evaluate how good you are when you sing by analyzing your voice pitch. Sing your favourite songs and see how you improve.
Basketball Manager (working title) is a coaching simulation for PC Platforms. The release of our demo is planned for July 2010, just short before the Basketball World Championship in Turkey. The demo version will feature single match and tournament modes
Mod for evolution simulation and artificial life program Biogenesis
You can download the Color Mod at the Biogenesis main site too (plus Sourcecode): https://sourceforge.net/projects/biogenesis/files/Color%20Mod/1.32/ If you want to post a review, remember that this is only a modification, so comment on my changes, not on the simulation. Original project by Joan Queralt Molina: https://sourceforge.net/projects/biogenesis/ Includes Tyler Colemans "Features Mod": https://sourceforge.net/projects/biogenesisfeatu/ Biogenesis discussion forum: https://sourceforge.net/p/biogenesis/discussion/ Biogenesis runs faster (at least for myself) if you open a Google Chrome window (don´t know why :D)
VR Flight Simulator with real world scenery and new aircraft
Cosmosair Flight Simulator (Cosmosair FS) is the next generation virtual reality (VR) flight simulator aimed mainly at x64bit computer systems (MacOSX, Windows, Linux) that integrates a 360º Degrees VR Engine. It comes packed with first-class Up-to-Date World Scenery and State-of-the-Art 3D Aircraft Models. It allows you to fly into Space and back to the Earth seamlessly. You can fly to Mars within it's atmosphere and explore it's landscape... or even fly and land on the Moon. You can perform orbital space flights near our earth or in far planets. With Cosmosair FS you can become a better pilot flying commercial airliners or military aircraft. You can do pre-established missions, set your own missions or discover the solar Sytem planet by planet with NASA's Shuttle or SciFi Spacecraft. Cosmosair FS comes packed with top-notch features that sets it apart from it's counterpart flight simulators. CosmosairFS is under active development and will be soon unveiled.
LifeFlight is a game based on actual medical protocols. You will play a flight paramedic/nurse with all decisions being made by you. The patient's life rests in your hands. Good luck!
RealTimeBattle is a programming game, in which robots controlled by programs are fighting each other. The goal is to destroy the enemies, using the radar to examine the environment and the cannon to shoot.
Java version of Stellarium.