I have spent a long time playing computer games; quite how long is probably not worth documenting here, largely because my significant other might finally have an answer to the question of why a large number of home improvement projects remain un-started. It seems obvious, but it’s worth mentioning that at the heart of computer games are systems. Players begin with little knowledge of the system. Equally, players are ill-equipped to beat the system, and hence progression is required. Progression …