Where was the game manufacturer who introduced RSVP based?
RSVP (board game) RSVP was a vertical version of "Scrabble" introduced by Selchow and Righter in 1958 and promoted as "3-D Scrabble". Two players spelled words using cubical tiles with letters on an upright grid board.
Gravity (company) Gravity Co., Ltd. (Korean: 그라비티 주식회사 ) is a South Korean video game corporation primarily known for the development of the massively multiplayer online role-playing game "Ragnarok Online".