What kind of game are you looking for? Do you like virtual pets? Try one of these games: Aywas.com - collect and battle virtual pets in a Pokemon-esque style Felisfire.com - breed winged cats

It depends on what kind of game you are looking for. Do you want the realistic pets that Foopets had? Because I don't think any other game has a similar engine. But if you are looking for virtual pets, and having fun, try Aywas.com. You can battle and capture pets like Pokemon.

Aywas.com - collect over 1,000 virtual pets and battle, breed, and buy/sell them.