MINECRAFT
MESA
RICH WORLD
Mesa is a well established world and is reasonably big. It's been going since at least v1.5 and is currently at version 1.8. The image file is currently 26Mb and the image itself is 8704x14336 pixels. Rich world is a new 1.8 world with the resources ramped up. All minerals are readily available. The spawn point is surrounded by a new castle complex.