I'm quite new to Blender's game engine, but I'm trying to give it a go now.
My first try was to create a simple WASD keys character movement using the logic editor.
For that, I needed to set the Loc (location offset) in the motion actuator for each keypress, but since they would be all the same value, and I could want to change them at a later time, I wanted to use some kind of variable to control it, like "character_speed". I know this seems like an overkill, but I'm thinking ahead for keeping things organized for bigger projects.
Is there support for something like that? Maybe using python scripting or drivers?