OurWorld - OurWorld is an Action, Great Online Virtual World, Social Interaction, MMO, and RPG Simulation by Flow Play.
Gleamville - Gleamville is a Free, MMORPG, Browser-based, Social Networking, Fantasy and Virtual World Simulation.
YoWorld (Yoville) - YoWorld or formerly known as Yoville, is an Action, Browser-based, MMO, RPG, Single-player and Multiplayer, Social networking, and Virtual World Simulation developed by Big Viking Games.
City Girl Life - City Girl Life is the social and fashion targeted experience produced by Playdom that can be played directly in your own web browser either through the Playdom website or Facebook.
MySims Kingdom - MySims Kingdom is based upon The Sims series but provides special and extremely different gameplay to the original series making it definitely worth your consideration.
Virtual Villagers - Virtual Villagers collection is a selection of life simulation games.