SGI MineSweeper game in OpenGL

an OpenGL front end for a CHESSTOOL such as gnuchess.

Free OpenGL billiard game for Windows and Linux with sources under GPL licence

A real-time Linux strategy game for two players for KDE (Open Source, GNU GPL)

Free multiplayer multiplatform 3D tank battle game. Irix, Linux, BSD, Windows, Mac OS X and SGI platfor

A free and open source 3D ping-pong game based on OpenGL. (GNU GPL)

Small driving simulator/demo with open source code

SDL/OpenGL space shoot'em up game

Danger from the deep (aka dangerdeep) is a Free / Open Source World War II german submarine simulation. [Linux / Windows] (C++)

Port of ID Software's classic Doom game with OpenGL

Win32/Linux source port of Doom, Heretic and Hexen with OpenGL and Direct3D support for graphics, and DirectX/A3D for 3D sound effects.

Open source flight simulator under GPL licence for Windows, Linux, Mac OS-X, FreeBSD, SUN/Solaris, and SGI/IRIX platforms.

Free OpenGL billard game for linux

OpenGL and SDL based action flight simulator.

An open source 3D chess interface. It uses OpenGL and GtkGLArea (from GTK+) for UNIX platform.

Free 3d real time strategy project

DoomGL (OpenGL compatible port of Doom) and ZDoomGL (OpenGL port of ZDoom, an advanced Doom sourceport)

Microsoft's own Open Source Initiative, using the GPL'ed Marathon 2 source code, called Aleph One.

An index of commercial, free, open source, and freeware OpenGL based games.

subwar / wing Commander - style openGL accelerated 3D game that runs both under Linux and Win 9x / NT / 2k.

A Doom engine that closely emulates the original game.

Online game finder and ELO ladder ranking for Sea3D Windows based 3-dimensional Settlers software.

OpenGL game with source code available. For Windows 9x/ME/NT/2000/X

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.

Multi-platform port based on the now public-domain source-code of Star Control II.

An Open Source project in which the user takes the form of Tux (the Linux Mascot) and races downhill through alpine trails.

A free and open source 3D game, that uses OpenGL, which is staring the famous penguin Tux from Linux. (GNU GPL)

Describes space simulation in which players trade and bounty hunt. Includes features, forum, manual, and downloads of beta versions