I've never read 2000 A.D. The only Judge Dredd product I've ever even really experienced is that god-awful Stallone movie from the early 90's. Despite this, I already feel like I get the franchise. As a character, Judge Dredd feels as universally understood to me as Dracula or Batman - you don't need to have read their canon to know what they're all about. With this in mind, I feel pretty confident in saying that Countdown Sector 106 is exactly the sort of game that Judge Dredd fans will love.
Gamebook Adventures, simply put, are the "Choose Your Own Adventure" of the modern era. But there's more to them than just making a choice and turning to this page or that; animations, music, character skills and even physics-based 3D virtual dice are all part of the action. Naturally, this sort of thing lends itself to all kinds of exciting stories, including, very soon, a tale of the infamous Judge Dredd.