Void



The void is the name given to the empty space external to the world in any dimension, most commonly below it. In vanilla Minecraft, it can only be entered by using a command or Map Editor, in Creative, using glitches, or by reaching The End.

Java Edition
Falling at least 64 blocks (i.e: under Y=-128) into the void causes the health of any mob (except the ender dragon) to be depleted by about every 10 tick, leading to the player's death in $2 1/2$ seconds. Armor, totems of undying, the Resistance effect and the Protection enchantment does not protect the player from dying in the void, and death occurs at 263.1 blocks into the void. Other status effects can alter the death level slightly. After this, if no buttons are pressed, the player usually falls to death at just over 256 blocks into the void, with this number varying on each death. It is possible to survive in the void if the player constantly eats enchanted golden apples. However, the only way to have enough of them is to have a command block constantly giving them to the player. The player can also survive in the void by having Regeneration or Instant Health of a sufficient level (achievable only by commands). If commands are used to make the player invincible or bestow infinite health, the player falls until Minecraft crashes. A player who falls into the void on a server with anti-flying measures is kicked out regardless of having a flying mod. Riding a vehicle into the void results in the player being stuck in the vehicle until death. The void extends for 2 blocks (1.07×10 ) on the Y-axis.



The void is black in the Overworld and Nether, and purple in the End. In the Overworld, the void also appears as having daylight if the player views from above sea level (Y=63; feet level Y=61.38). In the Nether, similarly, the void appears as the same color with the biome fog, if the player views above lava sea level (Y=31; feet level Y=29.38).

Other entities may also fall through the void and receive the same damage as the player, with the exception of the wither, which appears to take tremendous damage. The ender dragon is completely immune to the void damage. All entities disappear at 64 blocks into the void. Any entity between 64 and 319 blocks into the void appears as black. In the Overworld and in the Nether, a barrier layer of bedrock prevents the player from accessing the void. In the End, however, the void is easily accessible due to the large gaps between the islands.

Bedrock and Education editions
$$, the player's health is depleted by every half second at Y=-65 and below. At Y=-104 an invisible barrier is created, preventing the player from falling further. This barrier can be bypassed by using commands such as, after which the player falls indefinitely until they crash the game or fly back up. In Creative mode, one does not die, giving free access to flying under the void. However, if the player goes to any coordinates beyond negative or positive X or Z of 8,388,608 blocks, the invisible barrier disappears due to blocks of any kind no longer being solid to the player (see Bedrock Edition distance effects for more details). A similar phenomenon can also occur at certain lower coordinates in some instances.

There is daylight according to the current time in the void of Bedrock Edition.

Elytra also can't be boosted here using fireworks, making it fatal if the player does not have enough speed to return to a positive height.

All entities except ender dragons and NPCs are damaged by the void. Withers summoned in the void are unable to shoot wither skulls since the game instantly deleting them, and they gradually lose health like other mobs.

Void fog
In Beta 1.8, black void fog and the  particle effect were introduced. As the player descended below Y=17 in the Overworld, the void fog and particles would start to appear. As the player traveled deeper, the fog at the edge of the render distance would become closer until the player reached bedrock, where visibility was reduced to just a few blocks, beyond which was complete darkness. The gray void particles appeared below Y=17, as well as in the void.

The void fog was removed in snapshot 14w34c, the main reason being to improve performance. The  particle effect was also removed from the void, but stayed in the game until snapshot 17w47a when it was removed as part of The Flattening.

Trivia

 * When viewed on a map, the void is seen as the pattern used for an unexplored area. This is because there are no blocks recorded in the void's area, just the same as if the player has not explored or recorded normal areas.
 * When falling below the void, the second to last line of the debug screen disappears entirely, and is replaced by "Outside of world..."
 * This also occurs when a player reaches above the height limit.
 * The player can survive in the void with the Regeneration effect of level 6 or higher.
 * $$, the Void is the same color as the sky in the Overworld.
 * Because there is no light in the void, it can produce cave ambience.
 * If a player with night vision goes into the void, blocks above render as black.
 * Even though the New Nintendo 3DS Edition is based on Pocket Edition Alpha v0.15.4, which had invisible barriers at Y=-40, it was completely absent from this version of the game, meaning that it is possible to fall infinitely.