Forgotten Worlds happened in 1988.
Forgotten Worlds was created in 1988.
Forgotten Realms happened in 1987.
Forgotten Futures happened in 1993.
The Forgotten Realms Archives happened in 1997.
The Forgotten Realms Deluxe Edition happened in 2006.
Evolution Worlds happened in 2002.
Savage Worlds happened in 2003.
Tetris Worlds happened in 2001.
Distant Worlds happened in 2010.
Spindizzy Worlds happened in 1990.
Spherical Worlds happened in 1996.
AdventureQuest Worlds happened in 2008.