ImagiNation Network

The ImagiNation Network (INN), also known as The Sierra Network (TSN) and CyberPark, was an early online multiplayer gaming system. Developed by Sierra On-Line in 1989, and first available to the public in 1991, the ImagiNation Network was a unique online gaming network that gave subscribers from all over the U.S. a place where they could "play games, make friends and have fun". A wide variety of games (including RPGs, a World War I aeroplane simulations, live trivia, card and board games) meant that many different types of fans could find something enjoyable to play. INN also featured an electronic post office, many bulletin boards, chat rooms, and the company boasted of having "more than 200 groups, clubs and special events online."