Game Design
The following articles describing video game design methods and techniques are aimed at video games professionals.
A Process for Excellent Action Adventure level design.
This is a three part series of articles covering my preferred method for level creation in Action Adventure games. It assumes that game pillars, story and setting have already been decided. It also assumes that both brainstorming and a reasonable amount of concept art has already been generated.

Part 1 Level Flow Diagrams
This guide describes how to create a flexible high level brief that defines the most important events in a given level.

Part 2 Building Through Fiction
This Article outlines the second step in the level design process, that is, creating paper maps from the Level Flow Diagram. The design process described was developed to bring authenticity and originality to game levels.