Open Source PL/SQL Turn Based Strategy Games

Diplomacy is a popular turn based strategy game in which you battle to control Europe; to win you must be diplomatic and strategic. webDiplomacy lets you play Diplomacy online. Official game server: http://webdiplomacy.net/

Alien Assault Traders is an online, web-based, turn-based strategy space trading game forked off the source of both Black Nova Traders and Nova Game Systems software and inspired by the popular BBS game of TradeWars.

Apocalypse Game Engine (AGE) is a PHP based framework designed to be moddable. It is geared toward turn-based strategy games, and will allow admins to customize settings. Uses MySQL as the database, although we will port to allow virtually every type DB

Online strategic game.

DeadZone is a total rework of the popular web based space trading game BNT the new GUI incorporates Ajax technology and is totally 'skinnable' DeadZone is now in the release candidate phase and many new features have been added and are being finalised

This is ongoing project to overhaul the Promisance™ game system into one that is sci-fi based where players engage with starships and fighters. Improvments are incremental at this point, finishing some things where Promisance Enhanced left off.

A multiplayer web-based turn-based strategy game involving the management of galactic empires.

Liferay portal users are geographically located by their ip's and displayed with Google Maps API, indicating their cities, countries, flags, etc

A realtime java based multiplayer strategy game similar in nature to Konquest.

Last Hope, are a project of a web-based game . The context : heroic / fantasy game wih a \"classic\" medieval context, You can start as many positions : you are a poor boy-farmer, your farm need to grow up, because the king and their subjects ne

A web-based strategy game: build an Ocean Empire -- explore, meet and crush other players. Dominate the waves.

We are developing a gaming engine that can be used for either online planetary based strategy games , backend systems for Torque based games or online planetary/resource based gaming leagues.

PhPlay is a convenient PhP-powered game Generator, principally writed in French, for those who want to create easily a online PhP game aka Mass Multiplayer Oline Browser Game.

Project Luminary is a massive online multiplayer game. It can be played with every browser.

Promisance code based on QM Promisance 3.0 with many differences between them.

Wikipedia's Definition of a 4X Game; "4X games are a genre of strategy video game in which players control an empire and "explore, expand, exploit, and exterminate". The term was first coined by Alan Emrich in his September 1993 preview of Master of Orion for Computer Gaming World. Since then, others have adopted the term to describe games of similar scope and design. 4X games are noted for their deep, complex gameplay. Emphasis is placed upon economic and technological development, as well as a range of non-military routes to supremacy. Games can take a long time to complete since the amount of micromanagement needed to sustain an empire scales as the empire grows. 4X games are sometimes criticized for becoming tedious for these reasons, and several games have attempted to address these concerns by limiting micromanagement with varying degrees of success."

deeSDK is a game development kit for developing strategy turn based games in java. Will provide support for graphics, unit management and AI.