Space Commander 
An online space war game in which each player starts with his own planet. The first important step which should then be taken is to build facilities including energy plants and mines to collect raw materials. This material can then develop new buildings, including shipyards for space vehicles, ships and weapons to develop defenses [...]

 
Gangster World

This is a Gangster Multiplayer Online Game with many unique options. You start as an ordinary laborer and you end up in the world of the Mafia. You will be asked to do crimes muscles to grow in the gym. with each rank you will get more benefits, you can buy new weapons, new [...]

A big struggle in game design is finding the perfect color (colour) combinations.
Lucky there are some free tools on the web available to help make your job easier.

ColorCombos.com

colourlovers.com

ColorToy 2.0, a color scheme generator
colorbe.com
Colour palette generator based on an image you upload
Colordb the colour database
4096 color wheel
Colorhunter.com 
Color scheme generator2 
colorjack.com
Colors on the Web 
colorschemer.com
Colormixers.com 
colorblender.com 
kuler.adobe.com 
colr.org
pic2color.com 
krazydad.com/colrpickr

As a game developer you often have the need of gradients, those are small images that are pretty usefull for backgrounds, player stat bars etc…
A easy and free to use tool is Gradcolor. Gradcolor is a website with the one and only purpose of creating gradients fast. You can then use the image generated as [...]

DimensioneX Multiplayer Game Engine is an interactive multimedia free open source for developing and running adventure games. 
If you have ever dreamt of developing a video game then this tool is just for you. It is easy, quick, flexible and robust, hence a beginner can also be comfortable in developing a web based interactive game with characters [...]

The idea of combining images into a larger one and displaying this using CSS tricks has been around for awhile. There are a couple big benefits to doing this: First it reduces the number of HTTP requests that the browser has to make, by combining say 5 images into 1 big image, the number of [...]