Wolfenstein and Spear of Destiny port to the Linux/Win32/BeOS platforms using OpenGL
Xconq is an engine for turn-based strategy games. Variety of game genres run under Xconq: historical, sci-fi, fantasy, and modern. AIs. Network games. Multiple UIs and platforms. Easy-to-learn game design language. Large games library available
SDL Sopwith is a port of the classic 8086 biplane shoot-em-up game to modern computers.
Kymaera is a open-source Front End for many applications. It was originally designed as a FrontEnd for MAME and other EMU's for use on Arcade Cabinets. The current version of Kymaera 2.0.2 is for Windows and DOS. Linux version coming soon
Pipmak is a cross-platform game engine and authoring environment for point-and-click adventure games in the style of the Myst series. It supports panoramic nodes and uses Lua for scripting.
A very special TETRIS clone, the Queen of Tetrises, the TETRIS Queen, with 50 levels, 30 musics, total support for 2 player, and two modes: classic & destructor (with bombs and mega-bombs), this and much more in one free game developed with Allegro lib.
Space game of galactic conquest. Real time/turn based strategy with civilization type colonization of worlds. Influences include: Civ, Master of Orion, emperor of the Fading Suns, Dune. Universe a future dark age with noble houses vying for control. Forum for comments: http://spacesimcentral.com/ssc/forum/59-ad-infinitum/ Video link of game running: http://www.youtube.com/watch?feature=player_embedded&v=oloUoFRk4WE
Extended functions for the New Vegas Script Extender
NVSE plugin to add functionality including creating per-reference associative arrays, checking the skeleton in use by an actor, and so on.
The Rossum Project is an attempt to collect and distribute robotics software. We are seeking help with our first project, a mobile-robot simulator featuring a 2-D virtual world, and new work including artificial intelligence and robot-control logic.
The development of an open source Prince Of Persia Level editor for PC, a new game engine and complementary tools.
Pacman Arena is a Pacman clone in full 3D with a few surprises. Rockets, bombs and explosions abound.
The purpose of the FreeSC project is develop free scenery compiler/decompiler for Microsoft Flight Simulator.
GM Tools is currently innactive. GM Tools is a Game/Dungeon Master aid for role playing. It includes character, combat and world building management, and an adventure game.
This is a clone of the classic "Missile Command" Game, but it has better graphics and music. The gameplay has only been slightly modified. Penguin Command is completely licensed under the GPL.
UMark is a graphical interface that allows gamers to easily configure and run benchmarks on Unreal Tournament 200x. It supports "botmatch", "flyby", and "timedemo" benchmarks. You may save/load results, or submit them online.
3D driving simulation based on Open Dynamics Engine
3D realistic driving simulation with software rendering, based on Open Dynamics Engine. 7 cars (all electric) and 11 tracks are available in version 4.2.0. Cars and tracks can be easily created and modified. Only SDL 1.2 or SDL 2 required besides standard C library.
A scripting language designed to create console-like 2D games.
Drivers, servers, and all related software for playing Virtual-On: Oratorio Tangram on the Internet.
realistic truck & car simulator, with OpenGL graphics
update: https://sourceforge.net/projects/newctruck3drally/ It's a 3D, physically realistic truck/car simulator, oriented to dirt tracks. This is subsancially kept as hystorical. The environment is a hilly terrain which can also be user-defined in the form of a Bitmap image file (where intensity of red component defines height). It's similar to the classic "Terep 2". Particular care for internal cam. Written in standard C. There's a Windows executable ready for use, but it's compilable and playable on all Linux, BSD, MacOSX systems. Official VIDEO presentation: http://www.youtube.com/watch?v=B74QvPGyBYM The physical simulation was written from 0 of course, so no external 'third-party' libraries are used; except GLUT+OpenGL for the graphical visualisation & good interactivity.
Wintin is a scriptable MUD client for Windows
AllegroGL is a small library intended to allow Allegro applications to use OpenGL in Unix, Windows, Mac OS X and DOS.
Amberworld is (going to be) an interpreter for the Amiga classic Ambermoon (by Thalion) and games with a similar engine (Dragonflight, Amberstar, Albion). This project needs support, looking for an 680x0 assembler geek.
This is famous "Connect 4" engine and game. I think source codes may be useful for C/C++ beginners.
The IRC's Talking Robot
[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
Old style soccer game with many exciting features
Eat the whistle GPL is a football simulation game written in C that works on many platforms (win32/linux/macosx/amigaos/morphos), it uses the SDL framework. It has a multiplayer internet playing option in alpha stage.