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.
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.
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.
A Walk in the Dark - A Walk in the Dark is one of the most addictive and quite challenging Action, Puzzle-Platform and Adventure video game that takes you on an amazing journey in the world of wonders.
Tinierme - Tinierme is a Massively Multiplayer Role-playing, Fantasy, Virtual World, and Browser-based Life-Simulation.
Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes