File1291082321.jpg-(370 KB, 1093x948, shockchristD.jpg)
My custom game is like this, except more along the lines of Xanth.
And each of the five hub dimensions around the characters is a certain genre: Horror (Lovecraft meets Ravenloft), Magic (High fantasy), Technology (Steampunk post apocyliptic), Realism (Wild West), and Unrealistic (Super Heroes Utropolis). Each hubworld leads into any dimension that is that theme, Unrealistic leads to John Woo and Anime, Horror to World of Darkness, Fantasy to Dungeons and Dragons, Science to Star Wars / Trek, Realism to Modern Day etc etc.
Each character gets one unique reusable power that follows it's own custom rules me and the player design for game balance. Players can pull a character made from any of the 300 gaming books I have or whatever they want: nazi wookie assassins, vulcan steampunk journalists, elven bitter gunslingers, super hero alchoholic vagabonds, psychic circus masters.
Then they jump dimensions and face anything that's up to their power level. We rarely use character sheets or dice and every single group laudes it as the single funnest game they've ever played.
I will be releasing the official gamebooks soon in any Anon wants one.