He answers almost all of those questions in the links of his other reply.
The one stand out that remains unanswered though is gameplay length - though I am not sure your question is well formed.
When you ask if its content driven and juxtaposing it to being finite, I assume you mean to compare open world games like fallout (only limited by the content - no fixed ending) to more linear experiences with bosses and a credits roll... correct?
Otherwise, please explain more, as I am curious about this stuff too :D
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Brandon joined
Living in Beautiful British Columbia, working diligently away at making my first commercial video game.