1. Vega Strike
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.
2. Flightcombat_chung
Flight combat chung is a 3D openGL space/air/sea/ground flight simulator written in compiled free basic with combat against ships DCA and massive air/air/space dogfight.Give orders to your wing mens, declare war or attack other planes,or fly in formation, refuel at airports or space stations and explore vastes satellite heightmap countries or planets by plane, spacecraft, foot or car. Can run on a small netbook with windows 7. Zipped and unzip with 7zip.
3. vasFMC
vasFMC is a Open-Source project, which develops an Airbus Flight Managment Computer. Previous version were developed by VAS Project group, but they stopped development in November 2011. This is the follow-on project based on the last open source version 2.09A.
4. VegaTrek
Open source Star Trek based game (based on VegaStrike Engine) that lets you fight, trade and explore in the Star Trek universe.
5. QuteScoop
QuteScoop is a platform-independent status indicator for VATSIM. It is available for Windows, Mac and Linux.