[dexwiz]

Isn't this just data oriented design? The guide contains all the data for the game (maps, most graphics data as they were sprites, npc locations, stat blocks, etc). There have been RPG makers for decades that allow you to create a game with an OOTB world and combat engine. I guess a wiki is a novel interface, but it seems like a No Code game generator, which comes with a whole host of limits and issues.

This seems to come from a place where you think knowledge can conquer the world. Which it can, only when combined with action. Want to make a retro game that is reminiscent of your childhood? Awesome go do it. There are a thousand tools out there. But you are going to be shaving a lot of yaks if you think you can create something by solely knowing everything about it. Might as well build software with UML.