Kaneva vs Neopets
Kaneva
Kaneva allows you to discover a world where the only limit is your imagination and the time you are willing to spend in it. Here you can make friends, create your perfect home and even have a shop that you can run to have a regular income.The shop allows you to sell items you make, from clothes to cars and everything in between. When you are not working there is a lot of playing to look forward to as well, from pool parties with friends to hitting the clubs and meeting new people there is so much to do in this huge world. If you are really into making things you can even enter a suite where you can create your own parts of the world, as real estate to sell or to make that perfect beach for you and everyone else to lounge on. Whatever you want to do there is an option in this amazing virtual world
Please note that the Kaneva servers are no longer live and there are new projects in development via their website.
Neopets
Neopets is rather old yet entertaining simulation/virtual world game that lets you adopt and take care of magical and unique pets. This means that you'll be expected to build them a home, buy them food, clothes and other cool stuff. Set in a cartoonish and immense world, you can even set off on exciting adventures with your pet. Best part is that thepets in this game can grow alongside you and they have different looks for different stages of growth, much like the Pokemon in a Pokemon game. There are plenty of fun mini-games to keep you engaged for hours on end as well.
Although the game is a bit on the old side (being released in 1997 and all), the game still holds its charm for players who want a game that's a combination of a usual pet simulation/collection game with a virtual world game. It's free to play and you can play it directly from your browser!