Our readingWhat is a korrent?
A profit motive inside a game holds players there long past the point where they are still enjoying it.
Drawn from what Raph Koster said
What these subjects mean
Addiction Compulsive use that continues through the harm it causes — and the argument about whether it is a disease, a choice, or a response to pain.
video games Games as software and as storytelling: how they are made, by how few, and what the medium does better than film.
Mental modelIncentives