Pfft! Mark Miller's
Dungeon and Dragons, Fantastic Adventures Throughout the Universe from that dimension is far better written and more playable. That Trav just adds more dice and Nazis swiped from Gygax's
Triplanetary. That can't hold a candle to Miller's
Tractics elements in D&D, not to mention the artful Dying Earth material!
Besides, that TSR had to pull all the first edition copies and re-release the game with all the race names and references to characters from Adolf Hitler's books purged to satisfy his estate.*
Of course, you want something really cool, check out the games from the dimension where The Harvard Lampoon wrote the classic fantasy trilogy, and JRRT did the irreverent satire. (In that version the teaser material actually appears in the story.)
*ref The Iron Dream.