This is shareware made by the creators of MOPy fish. These are tarantulas. You need to feed them crickets and keep the cage clean. The graphics are amazing, and it is probably the most realistic free cyber pet there is.
Likes: Very realistic, and a unique pet too (not many spiders around the computer world).
Dislikes: The novelty can wear off, and some people may find the spider a bit creepy.
Availability: Virtual Creatures are shareware. It costs $10 to register.