Superflat



Superflat is a World Type, first introduced to Minecraft in Snapshot 12w01a, replacing the normal varied terrain of The Overworld with a thin flat layer of dirt.

The terrain consists of one layer of Bedrock, two layers of Dirt, and one layer of Grass; the surface of the world is completely flat and at height y = 4. Since the height limit (128) is unchanged, there is then slightly less than twice as much vertical height available to build above-ground structures as compared to a normal world. Mobs spawn as normal, including slimes; however, due to the lack of any overhangs blocking the sky, there is no “Void Fog” as would ordinarily be caused by being close to the bottom.

The Nether and The End generate normally; they are not flat. In order to create a Superflat world in SMP, the level-type flag in server.properties must be "FLAT", instead of "DEFAULT".

Future
Jeb is considering adding a Spawn Chest to this World Type if the player wishes to use it for Survival sometime after Minecraft 1.1.

Bugs

 * If the player breaks the Bedrock barrier, the player can see that the Void has the same color of the sky while the player is above y=0, but looks normal (black) when the player is below y=0.
 * There is no consistent spawn point unless the player has slept in a bed; the player may respawn far from the previous spawning location without anything in sight. This may be due to the lack of ground at the usual height of about 64.
 * Slimes spawn at extremely high rate due to land being at a very low level.

Trivia

 * Although barren, it is still possible to survive on this World Type. For example, the player has access to cows and chickens for food. Although without wood, the player has no access to Crafting Tables, and therefore nothing requiring a 3 x 3 crafting grid, unless they find an NPC village
 * With Generate Structures on, the player also has access to the materials that the NPC villages are constructed of.
 * It is also possible to find saplings in NPC village chest to grow trees in a superflat world.
 * Though the overworld is completely flat, the nether spawns just like it would in a default world.
 * The end is not possible to reach as eyes of ender don't work and there are no strongholds.