If someone does make a game out of this, let me know so I can play, too!

And Hyu, since you mentioned the idea of a Myst sort of game, here's a link to a group of people who are Myst fans and do programming:
Guild of Writers

I'm sure you could find some help in the forum, although it is more geared towards simply creating worlds to explore (i.e. Ages).

I am curious, did you have this level of detail in your dreams before you met Yuya?