Infinite Blank is a massively multiplayer online canvas.
The game’s world is endless, because players draw all of it.
Anyone can draw a new piece in a blank spot.
It then becomes a permanent part of the map.
The world grows as people play, and they can explore it together.
The goal is simple: creativity and exploration.
By the way, it’s completely free.
The client is crossplatform and supports Windows, Mac OS X and Linux.
Click the ‘Download’ link above to go get it, or ‘Forums’ to participate in the community.