From the Back of the Book:
The Future of New York is in Your Hands!
Inside are two books for two players. One of you becomes the crazed scientist and would-be world conqueror DOCTOR DOOM. The other plays Doom's arch rival in the MARVEL UNIVERSE, REED RICHARDS, and the FANTASTIC FOUR.
If you play the part of the brilliant super villain Doctor Doom, your objective will be to make New York a has-been on your way to taking over Florida -- and the world!
If you play the part of the Fantastic Four, your goal will be to make Doctor Doom and his doomsday device look like amusements from Coney Island.
Everything you need to play is provided: two books, Combat Table, and Character Sheets. No dice are required. All you need is a healthy supply of luck and two pencils!
PLAY ANYTIME, ANYWHERE, MANY TIMES!
The game is different every time you play, but your well-being is always at stake in THE DOOMSDAY DEVICE.