Pet Society - Pet Society is a Virtual World Simulation with strong Fantasy, Digital Pet, Single and Multiplayer Elements.
Toontown Rewritten - Toontown Rewritten is a Free to Play, Browser-based, MMORPG, and Virtual-World video game developed and published by Disney.
Neopets - Neopets is an Amazing, Virtual World, Massively Multiplayer Online, Role-playing and Fantasy-based video game developed and published by Viacom.
Chimpoo - Chimpoo is an Amazing, Massively multiplayer Online Role-playing and Browser-based video game developed and published by Games2Win.
Herotopia - Herotopia is a Massively Multiplayer Online, Role-playing, Virtual World and Browser-based video game developed by Herotainment and published by Jagex.
Fishao - Fishao includes the fun of fishing, competitions and also virtual worlds into the one that creates a quite distinctive and enjoyable video game experience.