You can find virtual pet games for free online at Neopets.com, Virtualpets.com and Furry-paws.com. Neopets and Furry Paws are social sites, while Virtual Pets has single player flash games.
Neopets is an iconic example of the virtual pet genre. With endearing, unique pet species, Neopets has become widely popular, with a peak in popularity in the mid 2000's. Virtual Pets offer more mundane varieties of animals, including cats, dogs and even monkeys. Virtual Pets offers a wide selection of flash games, each of which is single-player design and unique in the gaming market.
Neopets and Furry Paws both require a free registration, with the added benefit of being able to save progress and access the game from any computer or compatible media device. Furry Paws is specifically centered around dogs, with a wide variety of breeds and possibilities. Neopets and Furry Paws are social games, with the technology to chat with virtual pet enthusiasts around the globe.
Whichever you choose, each of these sites offers a unique experience that is likely to be enjoyed by those who enjoy virtual pet gaming experiences. All of these games are free to play and available in the browser on any computer equipped with flash gaming capabilities.