Realtime 3D engine for game development
The SoftPixel Engine is an OpenSource high level realtime 3D engine for C++ (GNU C++ & VisualC++). It supports Direct3D11, Direct3D9, OpenGL 1.1 - 4.1, OpenGL|ES 1.1 and OpenGL|ES 2.0 and runs on Windows, Linux, Android and iOS.
C/C++ library to add light and intuitive GUI to OpenGL and DX programs
AntTweakBar is a small and easy to use C/C++ library that allows programmers to quickly add a light and intuitive GUI into OpenGL or DirectX based programs to interactively tweak parameters on-screen. AntTweakBar works with Linux, Windows and OSX, and can be easily integrated with custom windowing system or with existing toolkits. Examples of integration with GLFW, SDL, GLUT, SFML and DirectX are provided. The AntTweakBar library mainly targets graphical applications that need a quick way to tune parameters (even in fullscreen mode) and see the result in real-time like 3D demos, games, prototypes, inline editors, debug facilities of weightier graphical applications, etc. The project is not maintained anymore but feel free to download and modify the source code to fit your needs or fix issues.
The Fury² Game Creation System is a game development toolkit for the 32-bit Windows platform, designed to allow the creation of complex multimedia software and games with minimal unnecessary effort (i.e. reinventing the wheel.)
2D game creation software
Classic Edition of Open Zelda, a 2D game creation software. This project has been superseded by the Modern Edition, but recently the Player had DirectX code replace with SDL 2 and changes are still welcome. http://youtube.com/watch?v=zHs4zRkcua8 [Linux] http://youtube.com/watch?v=lU2Xe5ewgwA [OS X]
Moo! it is a compact and basic C++ 2D-Game Framework for user learning on Game Development. Based primarily on OGRE, OIS for input systems and IrrKlang for a very simple audio engine framework, Moo! is intended to be as well a very basic and fun game ...
AudioPlayer is a DirectShow based media player capable of playing MP3, MPGA, WAV, MIDI, AU, WMA and ASF sound files as well as WPL, ASX, WMX, WAX and M3U playlists. Internet media is also supported and no install is required. All in less than 100KB.
A 3D multiplayer game. It simulates an war between two teams, and the gameplay is similar to the famous game Worms.
A 3D space-based Action/RPG full of strange places and characters, unexpected plot twists and of course lots of explosions
The MMORPG Resource - Setup your own MMORPG server Perl, C/C#/C++, Batch, SQL, ASM, VB6, Net, Shell. GNU always. Consultas Php, Html, Java - Java Script, , Mysql, Windows (win98, xp, server2003, etc),GNU/Linux. http://www.imperium-online.com.ar/
The goal of spacesim is simulation of a battles in free space. Unlike other such games, spacesim models management of the ship from the point of view of the captain, instead of the pilot. It allows management of the ship of several players at one time.
Another full 3D RTS Game Engine, Currently supporting OpenGL & DirectX. Also it is simple to add custom graphics drivers, eventually this will be ported to be OS independant but for development focus is Windows XP & DirectX
SIGMA (SImple Game MAchine) Framework - scalable platform for multimedia applications development.
Kochol Game Engine(KGE) is an object-orianted hardware accelerated 3D Game engine. Easy to use and powerful engine for cutting edge games.
MOGE 3D 'Message Oriented Game Engine'. Plugins: (Input, Render, Sound). Maps: Getic 3D 'GBT' (BSP files). Script: Squirel Textures: jpg, bmp,tga Network: TCP/UDP OS: Windows 2K /LINUX
NAMC - New version is based on Ogre3d, Ogrenewt & Newton game dynamics, and raknet. Slowly becoming an open mmorpg client/server. SVN Version supports PLSM2 for vast terrains and fast scene switching, and DotScene for general configuration of the scene.