This is the talk I’ve given about “Engagement by Design” at Better Software 2012:
Relating to game design and mockupping, I hope this talk shows the conceptual density necessary in game design. This reinforces the argument for mockupping, because of the complexity of the matter at hand; a nice quote I heard from @AntonioVolpon is
“build the least viable prototype”
(and a mockup before that) – an improvement with respect to “build the minimal viable product”.
All the links quoted in the talk are collected in this booklet.