 
 Theta Borealis Sector is a 1981 role-playing game supplement published by Group One for Traveller .
Theta Borealis Sector is a supplement which explores the worlds and subsectors found in the universe published by Group One for Traveller. [1]
Theta Borealis Sector was published in 1981 by Group One as a 16-page book with a large color map. [2]
William A. Barton reviewed Theta Borealis Sector in The Space Gamer No. 48. [1] Barton commented that "While there's no great reason for most players to leave the sector in which they're currently adventuring for Theta Borealis Sector [...] the product is well-suited for those who'd prefer some distance between themselves and the Imperium. And it does show that Group One is working to improve its products." [1]

Encounters in the Ventura Quadrant is a 1980 role-playing game supplement for Traveller published by Group One.
Encounters in the Corelian Quadrant is a 1980 role-playing game supplement for Traveller published by Group One.

Ley Sector is a supplement published under license by Judges Guild in 1980 for Game Designers' Workshop's science fiction role-playing game Traveller.

Geptorem is a 1981 role-playing game adventure for Traveller published by Group One.

Nystalux is a 1981 role-playing game adventure for Traveller published by Group One.

Beyond is a 1981 tabletop role-playing game supplement for Traveller, written by Donald P. Rapp, and published by Paranoia Press.

Glimmerdrift Reaches is a 1981 science fiction role-playing game supplement published by Judges Guild for Traveller.

SORAG is a 1981 role-playing game supplement for Traveller published by Paranoia Press.

Navigator's Starcharts is a 1981 role-playing game supplement for Traveller published by Judges Guild.

Nithus is a 1981 role-playing game adventure for Traveller published by Group One.

Lomodo IVa is a 1981 role-playing game supplement for Traveller published by Group One.

Marooned on Ghostring is a 1981 role-playing game adventure published by Judges Guild for Traveller.

Sapies is a 1981 role-playing game supplement designed by Dorothy Bledsaw, and published by Group One for Traveller.

IISS Ship Files is a 1981 role-playing game supplement published by Games Workshop for Traveller, written by Bob McWilliams.

Traveller Personal Data Files is a 1981 role-playing game supplement published by Games Workshop for Traveller.

Maranantha-Alkahest Sector is a 1982 role-playing game supplement published by Judges Guild for Traveller.

Marinagua! is a 1981 role-playing game supplement published by Group One for Traveller.

The FCI Consumer Guide is a 1981 role-playing game supplement for Traveller published by FASA.

A Pilot's Guide to the Drexilthar Subsector is a 1984 role-playing game supplement, written by J. Andrew Keith for Traveller published by Gamelords. A Pilot's Guide to the Drexilthar Subsector is a supplement that covers one subsector in the Reavers' Deep sector.

Crucis Margin is a 1981 science fiction role-playing game supplement published by Judges Guild for Traveller.