From publisher blurb:
This feature package adds all races, cultures, professions, talent descriptions, attack tables, fumbles and criticals in RMU Core. Choose from 33 races, including different kinds of humans, elves, orcs, even bird-like Avinarc and cat-like Idiyva. Then select the right profession between the 22 available, depending on your magical and combat preferences. Determine your upbringing by indicating one of the 10 cultures offered, from the coastal Mariner to the distant Highland. Make a memorable personality by adding some of the 112 talent descriptions included. And when you are ready to battle, pick one of the 82 weapons listed, and roll the dice, you could end up rolling a critical on one of the 15 critical tables included, but also on one of the 10 fumble tables, good luck!