Projectopia World

Projectopia World is a free online 3D city where players post their art and music, and other players can walk up and look at it. Each post gets its own spot in the city, on billboards and boomboxes, so it stays visible instead of disappearing from a feed. Players dress up their avatar, follow friends, raise a pet and listen to music other players have shared. The city has towers, a lake with a fountain show, a monorail and a beach to swim at, and characters who wave when you walk up.