Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the Stone Age to the Space Age. All items are free to view, share, and download. Read More

Anim8or is a 3D modeling and character animation program. Here's an entertaining tutorial on animating a walk cycle. All items are free to view, share, and download. Read More

A squad-based tactical strategy game. All you need to play UFO Alien Invasion is a computer running Microsoft Windows or a supported version of Linux, and the installer from our website. All items are free to view, share, and download. Read More

Orbiter is a free and realistic space flight simulation program for the Windows PC. Orbiter gives you an idea what space flight really feels like. The concept is similar to traditional flight simulator software, but you are not limited to atmospheric flight. Orbiter allows you to experience manned and unmanned space flight missions from the...

Although it is optimized for 3D astronomical visualization, Celestia can be used to display and explore other 3D environments, too. The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X. All items are free to view, share, and download. Read More

Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It is being used in planetarium projectors. Just set your coordinates and go. All items are free to view, share, and download. Read More