IISS Ship Files is a 1981 role-playing game supplement published by Games Workshop for Traveller, written by Bob McWilliams.[1]: 335
IISS Ship Files is a book of deck plans for six types of spaceships, presented as being from the files of the Imperial Interstellar Scout Service.[2]
Shannon Appelcline wrote that Traveller "made its way into the UK through Games Workshop imports and then through British reprints that began as early as 1979; Games Workshop even put out a few original accessories for the game: IISS Ship Files (1981), Personal Data Files (1981), and Starship Layout Sheets (1981).[3]: 122
Robert McMahon reviewed IISS Ship Files for White Dwarf #27, giving it an overall rating of 10 out of 10, and stated that "IISS Ship Files deserves full marks for giving the best ship plans for Traveller yet."[4]
William A. Barton reviewed IISS Ship Files in The Space Gamer No. 48.[2] Barton commented that "IISS Ship Files is a strong first offering from Games Workshop's Traveller folks."[2]