Vrusk give their company name before their given name. The Yazirian race are anthropoids similar to various terrestrial apes. They are muzzled, lightly furred, and have patagia stretching between their arms and legs which they can use to glide over short distances in low gravity (their home worlds are all low-gravity). They are descended from a nocturnal species, and prefer to wear tinted goggles to protect their eyesight during the day. They are said to be rather violent and pushy, and have a custom to choose a "life-enemy", which could be anything; a company, person, or a concept. The fictional species was rehashed as Shadow People in TSR's later Dragonlance series of campaign modules and also as the Hadozee race presented first in Spelljammer and secondly in Stormwrack. Yazirians share several points with the High Martians of GDW's later Space: 1889 RPG. Yazirians, like Wookiees in Star Wars and certain game depictions of fantasy Barbarians, have a "battle rage" or a berserker state of mind. These races were altered heavily and reused in TSR's Spelljammer, and were later republished for d20 Future by Wizards of the Coast. The Sathar are a race of mysterious, worm-like beings who are the enemies of the UPF (they are not intended to be used as a player race). They have wormlike bodies of 3 to 4 meters in length with two tentacular arms that end in fine tentacles for manipulation and two tentacles that end in paddles that can be used for heavy lifting (including acting as "legs", lifting the front of the creature off the ground in a humanoid-like stance). Their eyes have two pupils each, giving them good peripheral vision. The races of the Frontier know little about them other than their basic anatomy and the fact that they are hostile, as no live Sathar has ever been captured. Some of the behaviors and motives of the Sathar were revealed in the printed adventures for the game, and adventures commonly featured mercenaries working for the Sathar to undermine the UPF as villains. There are also other non-player races in the Star Frontiers universe, including many in the printed modules, but these five are the only races who developed space drive technology within the Frontier. Several new player races appeared in a late addition to the line, Zebulon's Guide to Frontier Space, and include the Humma (which resemble kangaroos), Ifshnit (akin to dwarves),