Neverwinter Nights

The original Neverwinter Nights was the first Advanced Dungeons & Dragons (AD&D) Role Playing Game to go online (pay to play), and was hosted by America Online (AOL). Situated in the city of Neverwinter and the more than 20 surrounding regions/areas, the game itself was similar to other official AD&D Forgotten Realms games of its time. Although most of the game play focused on role-playing with other online players, it is still possible to play the game offline. (mobygames.com)