Question: Eden Studios, Inc. is an American role-playing game publisher founded in 1996, Eden Studios is best known for the Buffyverse role-playing games - the "Buffy the Vampire Slayer" and "Angel" role-playing games - are complementary, officially licensed role-playing games (RPGs) published by Eden Studios, Inc, The "Buffy the Vampire Slayer Core Rulebook", was published in what year?
Sentence (from "Buffy Summers"): The character has also appeared in the spin-off series "Angel", as well as numerous non-canon expanded universe material, such as novels, comics, and video games.
Relevant evidence: No