I've been asked, several times, the difference between a game designer and a game developer.
Most designers also do some of their own development, and developers often make suggestions that lead to changes in the design.
There is even quite a bit of development done by playtesters.
So, in your opinion, what are the job and responsibility break-downs between these two career choices?
How much overlap is there, and how much SHOULD there be?
Designers are the Rock Stars of the industry. They create the cool games. They get their names on the box. And they win the awards.
But I think the developers have the harder jobs.
A developer is responsible for playing the game and finding all the ways to take advantage of the system. Where is the game too hard, or too easy? What is boring or unnecessary?
The developer makes suggestions to the designer, who takes the suggestions or not.
In the end, the game has to follow the designer's vision. The game will use the designer's mechanics, and be judged for the designer's skills. If the game does GREAT, it means the designer is amazing and did a really good job.
If, however, a game "Breaks" - if a ways is found to always win, or always destroy an opponent if you can get "this" combination of cards, or a component Just Doesn't Work - then it is the developer's fault.
The developer has a terrifying job. Come up with EVERY possible way gamers will play this game, all over the world, and make sure the game is unbreakable. If a single "break" is found, it will show up in reviews, on forums, and the game's sales will suffer.
Unfortunately, for the designer, if the developer fails, the embarrassment is thrown onto the Designer, not the Developer. It is a very serious relationship.