Trying to remember and find info on an experimental multiplayer

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Trying to remember and find info on an experimental multiplayer game that /x/ was really taken with 2014. The game started by asking you to enter the number that best describes you, which served as a user name seen floating above you by other players. There wasn't anything to do except walk around and look at the world built out of black and white wire frame graphics (much like the picture). At the center of the map was an intersecting highway overpass. I also remember a house and maybe a cemetery. All of the other players showed up as single vertical lines and could not talk to each other, but on occasion the creator would wander around the map as a shopping cart or face spewing a series of cryptic messages.
Anyone remember this? I stopped following it and have been wanting to read up on what, if anything happened to it.