#58 Ultima Online
Ultima Online was a game changer and opened up the possibility that an MMO could not only function, but be ridiculously fun at the same time. Ultima Online was released in 1997 thanks to Richard Garriott. After just two years of development, Ultima Online showed the world what a persistent and evolving video game world could be like, a user based economy and player-versus-player combat.
Ultima Online is responsible for another staple of MMOs, the monthly subscription fee. Ultima Online pushed the boundaries for games and social networking, paving the way for every MMO since.
Top 100 Video Games of All Time #58 - Ultima Online