Roleplayer (role-playing game)  Roleplayer is a role-playing game published by Roleplayer Enterprises in 1983. "Roleplayer" is a universal system, with sections on medieval fantasy, mutant powers, modern horror, and future technological weaponry. "Roleplayer" was designed by Matthew P. King, and published by Roleplayer Enterprises in 1983. It is a 187-page 3 hole-punched looseleaf book.