See also:
Adonthell A fantasy RPG game available for Linux, FreeBSD and BeOS. MacOS and Windows support will come soon. http://adonthell.linuxgames.com
CSPoker CSPoker is a lightweight poker client/server. Client implementations in Java and Flash. XML-based API. (Java) [GPLv2] http://code.google.com/p/cspoker/
Daimonin Free isometric real-time MMORPG. 2d/3d graphics, 3d sound effects, digital ambient music. http://www.daimonin.com/
Danger from the Deep Danger from the deep (aka dangerdeep) is a Free / Open Source World War II German submarine simulation. [Linux / Windows] (C++) http://dangerdeep.sourceforge.net
Enigma A puzzle game based on oxyd. Runs on Windows, OS X, and most open source operating systems. (C++) [GPL] http://www.nongnu.org/enigma/
Extreme Tux Racer An OpenGL racing game featuring Tux, the Linux mascot. The goal of the game is to slide down a snow- and ice-covered mountain as quickly as possible.(C++,TCL) [Linux,MacOS X] http://www.extremetuxracer.com
Fate A massive multiplayer space trading and combat game for Linux. [GPL] http://fate.sourceforge.net/
Final Frontier Trader 2D single player space strategy, combat, and trading game. (C++) [OS Independent] http://fftrader.sourceforge.net
Flight Gear Flight Simulator The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. Source code for the entire project is available. (OpenGL)[OS Independent] http://www.flightgear.org/
Free Gamer Open source games weblog and list. http://freegamer.blogspot.com/
FreeDroid Clone of the classic game "Paradroid". (C, Python) [MacOS, Windows 95/98/2000, Linux] http://freedroid.sourceforge.net/
The Genius Chess engine including artificial intelligence, user interface and several features. http://thegenius.sourceforge.net
Groundfire A 2D real-time multiplayer tank battling game. (C++) [Windows 9X/2000/XP, Linux] http://www.groundfire.net/
GtkPool 8-ball pool for Linux with customizable physics. http://gtkpool.seul.org/
Hawk Software Developer of the open source HAWK game engine, and the OpenNL portable networking library for Windows. http://www.hawksoft.com/
Holtz - Zertz and Dvonn board games Holtz is a GPL implementation of the abstract strategy board games Z?rtz and Dvonn from the GIPF project. (C++) [Linux, Windows] [GPLv2] http://holtz.sourceforge.net
Hot Potato Online This game is a fast paced arena sport where players try to explode the opposition using a short-fused potato bomb. http://hponline.sourceforge.net
irrlamb irrlamb is a 3D game that probably involves a lot of physics and frustrating gameplay. (C++) [Linux, Windows] [GPL2] http://code.google.com/p/irrlamb/
jQuizShow Free quiz game based on the "Who Wants to Be a Millionaire" game show. Add your own questions for classroom use or for fun. [Java, OS Independent, GPL] http://quizshow.sourceforge.net
K2W RPG A collection of open source client, server, and editor to build online role playing games. http://www.k2wrpg.org/
Libregamewiki The encyclopedia of free (as in freedom) games with free content. http://libregamewiki.org/
Linux Game Development Center The LGDC provides concise and accurate articles about Linux gaming news, development tutorials, and reviews of the latest tools and resources. http://lgdc.sunsite.dk
MUSoSu A free software project for playing, solving, and generating Sudoku games. (Java) [OS Independent] http://musosu.sourceforge.net/
Open Game Source A web magazine devoted to open source game development. http://www.identicalsoftware.com/ogs/
OpenLieroX OpenLieroX is the open source clone of the famous Liero (the realtime Worms) game. http://openlierox.sourceforge.net
Playing the Open Source Game Shawn Hargreaves has several Open Source projects and interesting articles about the future of Open Source games. http://www.talula.demon.co.uk
SecurePlay Open Source Development SDKs Build games on Secureplay sourcecode libraries in Flash/Java C++. Create secure game transactions for multiplayer games (player management, state/event control, random events, secret events) Platform independent Encrypted pluggable communications. http://www.secureplay.com/products/products.htm
Sekoya - open source mmorpg Sekoya is a gathering of students trying to develop nice open source games. Our main project is a MMORPG running under Linux and Windows. http://sekoya-games.sourceforge.net/
Small Apps and Games Small apps and games developments. http://www.freewebs.com/elfofthefire/index.htm
Snip Open-source Tetris implementation. http://snip.sourceforge.net
Spice Trade Colonize Europe in this Java based, open source game. Live an adventure in the 12th century world. http://www.spicetrade.org/
XML Feeds :
Planet Umi Grow a planet of silly Umis. (python/pygame) (GPL3) [OS X, Windows] [RSS] http://planetumi.com
