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FlyingGuns is a flight- and battlefield simulator used to develop and test approaches for low-resource, internet enabled games and distributed simulation. Areas of application might be industrial and military simulation or entertainment.

The same time, FlyingGuns is a 3D action computer game capable of single- and multiplayer gaming.

FlyingGuns lets the player enter a WW1 fighter plane and fight against human or AI opponents. Having slow planes keeps the gameplay compact. The game is capable to handle a real lot of opponents the same time. Fighting against 100 AI opponents solves the 'where is the enemy' problem, which is quite common to flightsim today, in an extraordinary manner.

FlyingGuns layers on top of the HeadQuarter technology that is developed simultaneously. Some effort has been taken to create an extendable framework for such kind of application. So FlyingGuns is just one example of what the framework can be used for.

License: free

Additional System Requirements: >= Java 1.4
Java3D (included)

FooBillard is a free OpenGL-billard game for Linux with realistic physics, AI-player and many gametypes like pool carambol or snooker. The main physics is quite mature but not yet perfect. If you are a billard-pro and you're missing some physics, please tell me. Cause I've implemented it like I think it should work, which might differ from reality.

The following features are implemented:

• wood paneled table with gold covers and gold diamonds
• reflections on balls
• shadow pixmaps
• detail switching of balls according to distance
• zoom in/out - hold right mousebutton
• FOV +/- - hold right mousebutton + CTRL
• rotate - hold left mousebutton
• animated queue
• 8ball, 9ball, snooker, carambol
• simple AI-Player
• strength adjustment
• eccentic hit adjustment (button2-Shift)
• red/green 3D stereo view !!!
• sound
• network play
• free view mode

License: free

Additional System Requirements:

• An OpenGL implementation
• libGLU
• libPNG
• freetype2
• SDL or GLUT

A city simulator aiming to improve on the basis of the sim city games, whilst providing a true 3D simulation.

License: free

Additional System Requirements: OpenGL library, 3D card

Free Tennis is a tennis simulation developed by a former tennis player. Its main feature is realism. For gameplay, this means you have total control over the shot parabola. For graphics, it means players have realistic gestures. For AI, it means real tactics. Netplay is available.

With version 0.3.15, the author believes gameplay is complete enough to be judged. However, before you judge it, please become a bit skilled (at least enough to beat the computer in -realistic mode at difficulty 210). At first, the subtle gameplay can go unnoticed.

License: free

Additional System Requirements: OCaml Compiler to Build. A precompiled binary for i386 architectures is included as well.

For those of you who were trapped in a small dark room during the late 1980's and 1990's, or otherwise similarly deprived, Populous is a series of games developed by Bullfrog Productions which created the god-sim genre.

The premise is that you (the player) and your opponent (AI or human) are gods or equivalent deities, and you battle each other using your powers - such as the summoning of natural disasters and the ability to coax the will of your followers - in order to destroy the followers of the opponent. The winner is the god with remaining followers.

License: free

Additional System Requirements: ClanLib 0.7

This is a port of the Freespace 2 code that was released by Volition Inc in April 2002. From the project web page at Icculus.org:

There is still a lot of work to do, but both the demo and full game run great. If you don't already own the full game, you may have a hard time finding it for sale, as copies of the game are pretty scarce these days. Be sure to apply the 1.2 patch for the full version, if you have not already.

If you don't have the full game, you can download a demo version from the Volition page listed below.

There is much enthusiastic work going on at the Freespaec Source Code Project, including a Babylon 5 total conversion. Their code incorporates the icculus linux SDL/OpenAL code, and compiles under linux.

The Freespace 2 code has also been adapted to work with the Freespace 1 data files, so if you own Freespace: The Great War and/or Silent Threat, you can play it using the linux client at http://icculus.org/~ravage/freespace/

License: free

Additional System Requirements: For multi & network, it's best to use the Source Code Project... ;) Especially when version 3.6.10 comes out (soon, perhaps in a few weeks - October '07?) Go to http://www.hard-light.net/forums, make a user account, and look in the forums for Turey's FreeSpace Open Installer... it gets the entire game + FSPort (FS1 + ST ported to FS2) for you! (And that's not all!) If you search for member jr2, and look in his sig, you will find a link to a Walkthough... although I doubt you'll need one. ;) Also there you will find links to alternative Installers.