Open Source BSD Games

Line-drawing and polygon-filling rasterization algorithms in Java. Simple 2D package and more complex 3D package with Z-buffering. Texture mapping not supported at the moment. Color interpolation for lines, Gouraud shading for polygons fully supported. Floating point vertex coordinates, not integer. Pixel-level aliasing, not endpoint aliasing. Doesn't use Bresenham line style! Works with all Java versions. No external dependencies. Suitable for study in academic institutions, especially as related to line-drawing accuracy. Particular attention to detail concerning chopping of accumulation errors, using a cast from 64 bit to 32 bit strategy, in the interval [1.0,2.0). Individual pixel errors with overlapping polygons or line segments are about one in a billion, but I can't reproduce any errors at the moment by using random number generation with tens of millions of cases. Emphasis not only on correctness, but also on performance for real-world use or hardware implementation.

Extensible 3D (X3D) Graphics is a royalty-free International Standard for real-time interactive 3D graphics on the Web, providing unsurpassed interoperability for 3D communications on the Web. This project includes source for example X3D scene libraries and multiple X3D codebases produced by Web3D Consortium members. All open-source contributions are welcome.

Orx is a portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. As orx is data driven, it allows users to create games with a small number of lines of code and reduces drastically the development time.

GemRB (Game engine made with pre-Rendered Background) is a portable open-source implementation of Bioware's Infinity Engine. It was written to support pseudo-3D role playing games based on the Dungeons & Dragons ruleset (Baldur's Gate and Icewind Dale series, Planescape: Torment). It should run on GNU/Linux, Microsoft Windows, OS X, possibly other UNIX derivatives and more. It is licensed under the GPL.

Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute.

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

A free and open source chess database application for Linux, Mac OS X and Windows.

FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found here: https://github.com/FreeCol/freecol/releases If you want to contribute to Freecol please visit our welcome information thread to see how here: https://sourceforge.net/p/freecol/discussion/719661/thread/2d0063a3bc/

Tux Paint is a free, award-winning drawing program originally created for children ages 3 to 12, but enjoyed by all! It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. You're presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents & teachers, or downloaded from 3rd parties. Tux Paint is available for Windows, macOS, Android, Linux, & Haiku operating systems, among others.

ShowEQ or SEQ for short is a program designed to decode the EverQuest data stream and display that information on another computer running the Linux OS in real time. Our Forums are located at https://seq.sourceforge.net/forums/

OverDose is a team and objective based multiplayer first person shooter set in a post-apocalyptic world.

Tour based strategic game. Similar to Heroes of M&M, but different. You can play this game under http://heroes.ca7.eu/

Framework to implement board and card games including some already developed games. Typical game elements are offered by this library, so developers just care on the essential aspects that differ. Games created with tjger are also hosted (Four wins, Oasch, Schnapsen, Trap the Wizard, etc.) and the Tjger Game Pack contains all these games.

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.

Enigma is a puzzle game inspired by Oxyd on the Atari ST and Rock and Roll on the Amiga. The object of the game is to find uncover pairs of identically colored Oxyd stones. Simple? Yes. Easy? Certainly not! Hidden traps, vast mazes, laser beams, and, most of all, countless hairy puzzles usually block your direct way to the Oxyd stones ...

Realism Invictus is a mod for Civilization IV with over 15 years of development.

The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers.

Android, Symbian UIQ 3.0 and Symbian Series 60 Edition 5 open-source software, tools, libraries and themes. Most notable the FX-602P / FX-603P Simulator and the HP-45 Emulator are hosted here.

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.

Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 13 races, 15 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband.

Client-server based software that talks to Digitrax LocoNet. TCP server talks through a hardware interface (e.g. LocoBuffer) to LocoNet. (User interface) clients talk to that server.

Speed Dreams is a Motorsport Simulator featuring high-quality 3D graphics and an accurate physics engine, all targeting maximum realism. Initially forked from TORCS, it has now reached a clearly higher realism level in visual and physics simulation, thanks to its active development team and growing community. It mainly aims to implement exciting new features, cars, tracks and AI opponents to make a more enjoyable game for the player, while constantly pushing forward visual and physics realism. It is also intended for any research, study or teaching activity, around physics and AI, thanks to its GPL V2+ license, and the clear and modular architecture of its C/C++ code base.

Domination is a game that is a bit like the well known board game of Risk or RisiKo. It has many game options and includes many maps. Written in java it includes a map editor, a simple map format, multiplayer network play, single player, hotseat, 5 user interfaces and many more features, it works in all OSs that run java 1.5 or higher, iOS and Android.

SEOW is a dynamic multiplayer campaign system for running on-line wars using the IL-2 combat simulator together with Iron Front in ArmA 2. SEOW is a free add-on for IL-2 and Iron Front in ArmA 2 released under the GNU Public Licence. For an install of SEOW, you need the MP, the DB and the DCS, 3 downloads in total. Check out the Files tab above for direct downloads.

Ebiten is an open source game library for the Go programming language. Ebiten's simple API allows you to quickly and easily develop 2D games that can be deployed across multiple platforms. In Ebiten, everything is an image: the screen, data from an image file, and even offscreen items are all represented as image objects. Most rendering operations consist of drawing one image on top of another. Ebiten games work on desktop (Windows, macOS, Linux, and FreeBSD), web browsers (through WebAssembly), and even on mobile (Android and iOS)! Plus, Ebiten is implemented in pure Go on Windows, so Windows developers do not need to install a C compiler. Nintendo Switch™ is also supported! While Ebiten's drawing API is very simple, Ebiten games run very fast with GPU power. Multiple images are integrated into a texture atlas internally, and drawing operations are automatically performed in batch when possible.