Glest - Free 3d real time strategy project Tux Racer - An Open Source project in which the user takes the form of Tux (the Linux Mascot) and races downhill through alpine trails. Danger from the Deep - Danger from the deep (aka dangerdeep) is a Free / Open Source World War II German submarine simulation. [Linux / Windows] (C++) FlightGear Flight Simulator - Open source flight simulator under GPL licence for Windows, Linux, Mac OS-X, FreeBSD, SUN/Solaris, and SGI/IRIX platforms. Space Invaders OpenGL - OpenGL game with source code available. For Windows 9x/ME/NT/2000/X Ani(mated)-Chess - an OpenGL front end for a CHESSTOOL such as gnuchess. Cannon Smash - A free and open source 3D ping-pong game based on OpenGL. (GNU GPL) 3D Mines - SGI MineSweeper game in OpenGL PrBoom - A Doom engine that closely emulates the original game. Marathon - Microsoft's own Open Source Initiative, using the GPL'ed Marathon 2 source code, called Aleph One. Doomsday - Win32/Linux source port of Doom, Heretic and Hexen with OpenGL and Direct3D support for graphics, and DirectX/A3D for 3D sound effects. The Ur-Quan Masters - Multi-platform Open Source port of the classic sci-fi game Star Control II, based on the original source code of the 3DO version, with new features including network play and remixed music. Vega Strike - Describes space simulation in which players trade and bounty hunt. Includes features, forum, manual, and downloads of beta versions Kokak's Doom Page - DoomGL (OpenGL compatible port of Doom) and ZDoomGL (OpenGL port of ZDoom, an advanced Doom sourceport) Possible Worlds - subwar / wing Commander - style openGL accelerated 3D game that runs both under Linux and Win 9x / NT / 2k. The Blue Mango Quest - 3D arcade game written in C/C++ and using openGL. The goal is to extend the pacman-style gameplay. This game runs both on Linux and win32 platforms and is released under the GPL License. CarWorld driving simulator - Small driving simulator/demo with open source code Tuxedo T. Penguin: A Quest for Herring. - A free and open source 3D game, that uses OpenGL, which is staring the famous penguin Tux from Linux. (GNU GPL) FooBillard - Free OpenGL billiard game for linux. Includes description, FAQ and downloads BZFlag - Free multiplayer, multiplatform 3D tank battle game. Irix, Linux, BSD, Windows, Mac OS X and SGI platforms. Doom Legacy - Port of ID Software's classic Doom game with OpenGL