The definitive best sci fi universes of all time tier list - rank, compare, and debate the best and worst best sci fi universes of all time. Place each item from S (GOATed) to D (bottom tier) and share your best sci fi universes of all time rankings. Made for fans who love ranking best sci fi universes of all time, this tier list maker is free, easy to use, and perfect for settling debates on TierBuddy. Popular categories include sci-fi, movies, tv-shows, sci-fi-movies.