We have met A. Bertrand as a member of our browser game development community CE. He is a frequent visitor and helps several of our inexperienced members. A. Bertrand is also the developer of the successful game engine NEaB – Nowhere Else and Beyond.
As a provider of browser game related sites for developers as players [...]

The Nowhere Else and Beyond Game Engine
 The Nowhere Else and Beyond (NEaB) engine is a fully  customizable 2D game engine based on the hugely popular MMORPG  of the same name. The distinctive, and unique, map system allows you  to create a variety of different game situations and the art provided  with the engine is [...]

Deathray Games released one of their games under the creative commons license.
It is a very simplistic, one-player, fantasy hack’n’slash browser game which leaves a lot to do with it.
You can easy adopt it to have it build in other game engines, make it multi player whatever as long you follow the creative commons license.

Game: http://deathraygames.com/play-online/drg/greenhydra/index.html
Download: http://deathraygames.com/play-online/drg/greenhydra/archives/LOGH_v1.zip
Deathray the [...]

The Horizons Game Engine
Our philosophy
The Horizons Game Engine (HGE) is intended to meet three essential needs of browser game owners and developers.

Secure code!
HGE is built from the ground up with security in mind. We’ve worked on many games and see just about every security hole there is. HGE has tons of built in security precautions. [...]

The Gangster legends engine is as it is, the developers deprecated the further deveolopment of this engine.
### General Information ###
Gangster Legends: Source is a text-based MMO gangster game written in php. The base of GL: Source is the v0,75 script that has been available for download for a while now. We decided to [...]

Aranging tiles for your game can be bothersome. So We found this usefull cheat sheet for using tile sets to build your game worlds.

Solar Empire is a GPL/public domain browser-based strategy game (BBS) written in PHP. Users control fleets, planets and equipment to conquer the galaxy. Almost limitless variation given by advanced customisation options.

### DOWNLOADS ###
http://www.criminalexistence.com/downloads/Generic-2.9.1.2.zip

Duliga is a PHP written MySQL based multi player online / web game played by Browser. It reverts to real soccer / football results. Users set up a team of real players that competes in a league and various cups aginst other users teams.
Project Admins : duliga_de 
Developers : 1 
Database Environment : SQL-based 
Development [...]

 Name: SMF Army
 Author: Crip 
 Type: Modern 
 First Created: April 20, 2008, 05:05:54 PM
 Last Modified: April 20, 2008, 06:30:58 PM
 Compatible With: 1.1.4
 Color style: Dark 

 Name: America’s Army Bridge
 Author: Hairy 
 Type: Minimal 
 First Created: February 19, 2008, 08:25:15 AM
 Last Modified: August 09, 2008, 09:20:29 AM
 Compatible With: 1.1.4, 1.1.5
 Color style: Neutral 

 Name: Army Green
 Author: wmd5002 
 Type: Natural 
 First Created:  July 30, 2008, 12:01:11 AM
 Last Modified: November 08, 2008, 02:00:59 AM
                           [...]

 Zend is pleased to announce the public beta release of Zend Server, their next generation  PHP Web Application Server designed from the ground up to be the best possible stack  for production PHP applications. Zend Server combines new functionality with  capabilities found in Zend Core and Zend Platform into a single reliable PHP stack for [...]