Primary Races – these races will be allowable in most campaigns, though the gm may wish to not allow them for any reason.
Secondary Races – these races can be made to fit most campaigns, though they often will have a difficult time in certain social situations. Generally ask before playing these races.
Tertiary Races – These races generally are very difficult to role play and create a whole slew of social difficulty. They may not fit all campaigns or areas. For instance, the intelligent Deathclaws as outlined below have been seen in the west (though they were ultimately exterminated so only fit a short timeline) and in the midwest. They have never been seen in the east. The GM may also determine a certain race is too disruptive. Always ask before choosing one of these races.