From publisher blurb:
With the RMC Creatures package for ERA, you get 451 creature templates to choose from in your adventures.
For each and every entry in RMC Creatures and Treasures, information on movement, attacks, defenses and critical resolution will be automatically loaded when selecting a creature. Get your combat ready in no time with all the options at your disposal.
Dragons can be sent sweeping down to breath fire, and killer rabbits can be added to smile upon the party. Plants, demons, unicorns, and more, all included in this single package!