Marinagua! Marinagua! is a 1981 role-playing game supplement published by Group One for "Traveller". "Marinagua!" is an adventure setting in the Theta Borealis sector. William A. Barton reviewed "Marinagua" in "The Space Gamer" No. 49. Barton commented that ""Marinagua" has little to recommend it over past G1 adventures (and nothing over recent "Traveler" adventures by other companies). For completists only."