World Wide Wargames (3W) published issues 83-85 before changing the name back to Space Gamer for issues 86-87 (Vol. 2, Nos. 1-2 in their numbering system).
Future Combat Simulations changed the name back to Space Gamer/Fantasy Gamer, starting (and ending) with issue 88.
Better Games (Rahm and Hilmer) eventually acquired the name, and published "Volume 2" in 9 issues over several years; they changed the format to a game per issue. They have since gone to an electronic subscription site for online games based upon the games in their print run.
Issue 86 was noted on the cover as "Vol. II, No. 1"; Issue 87 was noted on the cover as "Vol. II, No. 2" - in the listing we have used Issue 86 and Issue 87 to disambiguate the issues from the later (longer lasting) "Volume 2", which also included Issues 1 and 2.