You can have a RPG in 32 pages if you cut out all weapons, armor, spells, tech, skills, classes and any decent combat and initiative system. I would guess a RPG called Dinosaur would work. Plant or meat eater, move, fight, eat, sleep, and poop (that may need to be an expansion rule book). You could wrap that up in less than 32 pages with a few pictures.
Humor aside, RPG type games need source material to define everything in terms of the game system being used. You are not chained to a table to read every word before playing. You read and use what you need for the character you are playing. If reading RPG materials is too much, I would find a different game type to play.