Starspawn of Volturnus is an adventure published by TSR in 1982 for the science fiction role-playing game Star Frontiers.

At the conclusion of the second module in this series, SF-1 Volturnus, Planet of Mystery, they learned that an invading battle fleet of the mysterious and aggressive aliens called the Sathar[1] would be arriving in two weeks.

[2] In this, the final adventure of the trilogy, the humans have only a few days to create an alliance of the four native races of the planet if there is to be any possibility of defeating the Sathar.

TSR quickly followed this with the release in the same year of two more adventures in the "Volturnus Trilogy", SF-1 Voltrunus, Planet of Mystery, and SF-2 Starspawn of Volturnus, a 32-page book with a cardstock outer folder, written by Mark Acres and Tom Moldvay, with interior art by Jim Holloway, and cover art by Tim Truman.

[4] Jim Bambra reviewed Starspawn of Volturnus for Imagine magazine, and stated that "Good players are rewarded by a cataclysmic conclusion to the Volturnus trilogy and the potential for some very enjoyable roleplaying.