A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.
SuperTuxKart is a kart racing game featuring Tux and friends. It is a fun-racer game, focusing on fun and ease of play.
For exploring cellular automata like the Game of Life.
A cross-platform application for exploring Conway's Game of Life and many other types of cellular automata. Features include bounded and unbounded universes, fast generating algorithms, Lua/Python scripting, and a state-of-the-art pattern collection.
Paintball2 is a fast-paced first-person game with capture the flag, elimination, siege, and deathmatch (free-for-all) styles of gameplay. This project focuses on enhancing the Quake2-based engine it uses.
A Jump and Run game like Super Mario World with an advanced Editor and highly detailed Graphics based on SDL with a OpenGL accelerated Graphics Renderer developed in C++. Runs under Linux, Windows and Mac and can be easily ported to other platforms.
Python bindings for Ogre3d graphics engine, built using Py++ and Boost.Python library - Also refered to a Python-Ogre.
A multi-player networked clone of the classical Bubble Bobble board game. Throw bubbles at monsters and collect dozens of different bonuses before your co-players!
Metamod-P is enhanced version of Metamod. It has dynamic link-entities and automatic detection of Mod DLL and other improvement to allow it work with future Half-Life Engine updates and new Mods and updates. It also has performance optimizations.
A strategy game with a high fantasy theme
The Battle for Wesnoth is a Free, turn-based tactical strategy game with a high fantasy theme, featuring both single-player, and online/hotseat multiplayer combat. Fight a desperate battle to reclaim the throne of Wesnoth, or take hand in any number of other adventures.
3D game engine (more powerful redesign of the Cube engine) and FPS game
GWFreaks is a character builder for Guild Wars, allowing you to plan you skill in advance, search for skill on the map. The project exists since the beginning of Guild Wars. Check out www.gwfreaks.com.
Spi Poker lets you play poker against other people on the internet. It supports holdem, omaha, and 7-card stud on IRC poker. Spi's aim is to be an extremely graphical and natural interface to playing poker. It runs on Linux (X), Windows, and Macs.
Real-time 3D visualization of space
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
NeoEngine is an Open Source platform independent 3D game engine written in C++
Soul Ride -- a physics-based snowboarding sim, with an advanced terrain engine designed for rendering real-world locations.
Hulk is a 2D action game with top down perspective. It's not another clone of Space Hulk but it heavily inspired by Warhammer 40k universe and games like Alien Breed.
Freekode is an open source multi platform implementation of the OpenKODE 1.0 Specification.
The Ark is a single player, fantasy based 3D RPG.
"Nearly Intelligent Computer Operated Language Examiner" - NICOLE is a theory or experiment that if a computer is given enough combinations of how words, phrases and sentences are related to one another, it could talk back to you.
NetHack is a popular single player dungeon exploration game that runs on a wide variety of computer systems.
Another version of the simple action game modeled after the lightcycle sequence of the movie Tron.
A 3D simulator game where you can drive, fly, and sail
Rigs of Rods is a 3D simulator game where you can drive, fly and sail various vehicles using an accurate and unique soft-body physics engine. Since 2014, the development continued at https://github.com/RigsOfRods/rigs-of-rods UPDATE: 10/30/2016: removed opencandy installers, replaced with zip files.
An RTS engine intended for user-produced rules, AI, and media modules (mods). Thus, sound and flexible design are priorities.
As a child, you where tortured in the playground. You where a victim of the highschool hirarchy. You hacked hours on end, and build a machine that transphormed you into a bird. You are now free (as in speech) to fly around the city and poop on passers-by