AI Wisdom - Attempts to catalogue every game AI article ever written in game development books, magazines, and conference proceedings. All articles can be searched by topic, genre, resource, or date. It's a very focused site and a great place to find out what secrets game AI professionals have published.
Amit's Game Programming Information - Descriptions of algorithms for artificial intelligence, path finding, game design, objects, hexagonal tiles, threads, and text games.
Blitz Basic - A specialized version of BASIC designed specifically for game development. Includes features like custom types and functions. Code is compiled before execution to speed things up.
BlueParrots - C, C++, Assembly source code examples for games, graphics, and sound.
Bug in the Machine - Game programming site. Sources, documentation, complete Visual Studio projects. MFC and PSX programming tutorials. PS1 and PS2 development Kits.
CFXweb - Demo and Game Development - Daily news, articles, art gallery, downloads, games, demos, demo scene news, forums, online irc clients, and source code.
2DNow - A forum for people interested in independent 2D game development.
DXC Companion - Tutorials and resources for the DX-Creator.
East Coast Games - training new programmers and to making great games, tutorials on C/C++, Java and DirectX, several games written for Windows (freeware).
Exaflop - A programmers' resource with extensive resources related to graphics and games programming.
flipCode - Find articles, coding techniques, news, and interviews relating to Game programming. A fair number of specific tutorials as well.
Game Development Search Engine, The - Web portal and search engine dedicated to game development. Links to articles, tutorials and source code that cover all aspects of game development. Read and post to game development newsgroups.
Game Tutorials - Over one hundred tutorials in C/C++ for the beginning programmer.
GameDeveloper.net - Good site with many tutorials. Subjects include 2D/3D, physics, and AI. Covers OpenGL, DirectX, game design, and graphic art.
GameDev.net - Featuring a huge reference library and weekly interviews of professionals inside the industry. Participate in a public game development project.
Games++ Megasite - Game programming, online games, cheats, tutorials, references, Direct X, C/C++, and Java.
Games Research - Materials from, and links to resources related to, the Siggraph 2000 course "Games Research: the Science of Interactive Entertainment"
GamesCoding UK - Overview of different languages and libraries for game programming, demo programs, "projects" (tutorials), and news about the industry.
GarageGames.com - An online game development community and resource center, keeping independent and professional developers connected to their peers, the industry and cutting edge information, tools and code.
Gepard Studio - Downloads for game programming, along with some Java, Linux, DOS and Windows games.
GGD - Tools and knowledge needed to create and distribute games. Including tutorials, downloads and books.
Impacto - A tool to make games and multimedia applications.
Imperial Snowman Soft - Game programming resources for VB, Java, JavaScript, Python and Perl. Tutorials, source codes, forum, sound files, pictures, programming tools and links.
Irt.org - Design challenges, tutorials, and articles on coding design.
Knowledge Hound - Tutorials, tips, and how-to guides for game programmers of all types.
Making a quake3 mod - A document describing how to compile quake and install you mod.
Mappy for PC (DOS and Win95) - A utility for creating flexible 'maps' for tile based 2D games (scrolling shoot-em-ups, or 8-way scrolling adventures, whatever).
PC Game Programming Explorer - Book by Dave Roberts that takes readers inside the world of PC game programming and reveals the essential techniques to make game programming easy and fun.
The Playground Project - Building computer environments for 4-8 year-olds to play, design, and create games. A playground is a place to play with rules not just by them.
RPG game programming page - Page related to RPG programming. Has a freeware game (not finished, but in development) w/ all its sources
Simple Game Engine - Information, screenshots and downloads for Simple Game Engine (freeware) that enables you to write your own games using a definition language.
SoftLight Development - Lots of programs and source code, development tools, Direct X examples, and killer links. With a Windows focus.
TI 83/86 Program Source Code - TI-83 and 86 Source Code for several games. All games can be programed directly onto your calculator.
Web Game Builder - Free resource for anyone wishing to write online games. Offering tutorials, forums and linking to member games.
Xtreme Games - Free tools and source code and an offer to sign up new developers for joint ventures for a general pooling of resources.
Zingtech Computer Solutions - Development site with tutorials, an introduction to DirectX and a game idea center. Also Allegro game programming library sections. Books. Links.
Ziron Multimedia - Links to articles, source code, and tutorials.
zstar - An extensible, distributed system for game development, consisting of an abstract game client, and a game server to which players connect to play games against other players or alone.