Heroes Unlimited is a superhero role-playing game written by Kevin Siembieda and first published by Palladium Books in 1984.

The revised edition also included a short rules summary of the Palladium game Teenage Mutant Ninja Turtles & Other Strangeness, adding mutant animal character rules and a shortened selection of animals for character creation.

The mutant animal characters are generally weaker than standard heroes as the TMNT supplement Turtles Go Hollywood noted.

[2] Barton commented that "if you desire hero-types like Batman, Captain America, Robotman, or Wolverine, Heroes Unlimited is a superbuy, even if you use it as nothing more than a sourcebook for an existing game".

Editor Paul Pettengale commented: "Superhero roleplaying for the Palladium player, but not all that easy to pick up".