Glitch was an awesome game that had to shut down last year. It was a no-fighting, crafting, exploring, making friends game that was utterly prepostorous, yet people really liked it. It was a very friendly game, so many people were sad to see it go. (http://www.glitch.com)

As for the sloths, you had to feed them with metal rods (that you made from metal you mined) so that they would spit snails (screw-shaped nails) back at you. They looked happy about it though. :~D<

...I totally need a Glitch icon, I think.