Open Source Server Operating Systems Games

3D game engine and multiplayer/singleplayer FPS game

AA means Ascii Art - the AAlib (ascii art GFX library), BB (audiovisual demonstration for your terminal), aview (image browser/animation player), AAvga (SVGAlib wrapper for AA-lib), ttyquake (text mode quake), aa3d (random dot stereogram generator)...

Detailierte Informationen in Deutsch finden sie auf unserer Homepage. FreeDoko implements a version of the german card game Doppelkopf. The game Doppelkopf is a card game for four or more Players. For more informations visit our Homepage

NetHack is a popular single player dungeon exploration game that runs on a wide variety of computer systems.

ScummVM is a cross-platform interpreter for many point-and-click adventure games. This includes LucasArts SCUMM games (such as Monkey Island 1-3, Day of the Tentacle, Sam & Max, ...), many of Sierra's AGI and SCI games (such as King's Quest 1-6, Space Quest 1-5, ...), Discworld 1 and 2, Simon the Sorcerer 1 and 2, Beneath A Steel Sky, Lure of the Temptress, Broken Sword 1 and 2, Flight of the Amazon Queen, Gobliiins 1-3, The Legend of Kyrandia 1-3, many of Humongous Entertainment's children's SCUMM games (including Freddi Fish and Putt Putt games) and many more. The project mailing lists have been moved to http://lists.scummvm.org The project tracker has been moved to https://bugs.scummvm.org

Open Source implementation of the wonderful puzzle game Fish Fillets from ALTAR interactive.

OpenTTD is an open source clone of the Microprose game "Transport Tycoon Deluxe". For more recent versions visit our website: http://www.openttd.org

QuakeForge is a set of 3D graphics game engines based on id Software's legendary Quake series of game engines. Our purpose? To improve the state of the game by improving the engines and making them accessible to as many people as we can.

Pauker is a generic flashcard program written in Java. It uses an innovative combination of ultra-shortterm, shortterm and longterm memory. You can use it to learn all the things you never want to forget, like vocabularies, capitals, important dates,

TinyFugue, aka "tf", is a flexible, screen-oriented MUD client, for use with any type of text MUD.

A UNIX/Windows/Linux remake of the DOS-game "stunts", providing modern features like openGL graphics, 3D sound and internet multiplaying. Design your own tracks, choose your opponents and try the most spectacular stunts you've ever seen.

Organization for Free Software in Education and Teaching. Our goal is to develop free software for education with knowledge sharing as our main concern. We already have developed software as DrGeo, GCompris, DrGenius and the live CD freeduc.

Open Mortal is a parody of the once popular coin-up fighting game, Mortal Kombat, for Windows and Linux. It is currently playable, has 18 playable characters. There is network game, team mode, etc. You can even add your own character.

Peces és un programa per jugar a 40 modalitats de tangram y més de 31.000 figures per resoldre. Podeu crear noves figures, generar-les automàticament, crear concursos i intercanviar les dades amb altres usuaris. A tangram's program with 40 modalites of tangram and more 31,000 shapes. You can create new figures and add them to the main game. In addition, it is possible to create competitions against your friends, and select only the shapes you want to use. Programme pour jouer avec 40 variétés de tangram et plus de 31.000 figures. Gioco di 40 modalità de tangram e più 31.000 Die Freeware Peces ist ein sehr umfangreiches Tangram Puzzle Spiel für Mac OSX mit vielen unterschiedlichen Formen und 4 Schwierigkeitsstufen. Die in einzelne Teile zerlegten Formen müssen dabei wieder richtig zusammengefügt werden.

Game software for emulating an EverQuest server

OpenPref is open source implementation of European trick-taking game Preferans (http://en.wikipedia.org/wiki/Preferans ) against two virtual players.

MAMEoX is a port of the popular MAME (Multi Arcade Machine Emulator) system to the XBOX. The main goals of the project are to provide a well documented port with a consistent coding style.

A console/text based chess program with XBoard/CECP and UCI API, available on all major platforms. You may need a graphical chess interface to use it. Please refer to README.md in the files section for installation instructions. The last stable release is 2.1.9 and has been released on 19/08/2025. Belofte 0.2.0 till 0.9.20 (c/c++): Xboard 1 & 2 (CECP) - Linux/Unix/(Windows) Belofte 2.1.1 and up (c++11) : UCI and Xboard 2 - Linux/Windows/Mac/Android/... For access to code, please clone the git repository. Compiles and Runs on 32/64 bit on Windows, Mac, Linux, Android (ARM/x86) and Raspberry. Released under GNU v2 license. (means free to copy, free to modify, free to use, ...) Works fine with Arena/Cutechess/BanksiaGui/Winboard/Xboard/...

porting Quake,Quake II and Hexen II to Dreamcast console

Sarien is a portable implementation of the Sierra On-Line Adventure Game Interpreter (AGI), and is able to run games such as Leisure Suit Larry in the Land of the Lounge Lizards and Space Quest I and II.

The Geek Code Generator will generate a geek code block for you by asking you a series of questions about yourself. The generated code can be pasted into your .sig or anywhere else you would like to display your geekiness.

TempleOS is a 64-bit kernel with compiler, graphics library and tools. It is not a Unix. It was made from scratch.

GAV (Gpl Arcade Volleyball) is an object-oriented multiplatform Arcade Volleyball clone. It supports multiplayer and theme customization.

SMM++ Mud Client is a mud client with extended and unique features. SMM++ features a highly customizable user interface (labels, buttons, and menus), unique and powerful mapping capabilities. Powerful scripting, even classes!

SSF aims at providing an easy to use and efficient framework for physics sim & visuals in small scientific simulations in real-time, as well as games, which are inherently real-time applications.