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Nether Reactor

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Nether Reactor
200px-Nether Reactor
The Nether Reactor


Generated Structure



First Appearance

Version 0.5.0

The Nether Reactor, sometimes known as the Nether Machine, is a player-built structure that was added in Update 0.5.0. When activated, the Reactor spawns many blocks and items, and most importantly, a tower of Netherrack around it. 


To create the Nether Reactor, the Nether Reactor Core is needed, which consists of Diamonds and Iron Ingots. 4 Gold Block along with 14 Cobblestone are also needed.


  • After 0.11.0, the Reactor cannot be created on Bedrock level.
  • The reactor remains active for about 45 seconds.  
  • After the reactor is deactivated, a Netherrack tower is left in its wake.
  • The tower will spawn Zombie Pigmen if you are in normal. They spawn in groups of 2-3. Unlike PC and console edition, they are naturally hostile.
  • When activated there are 3 stages of the nether core reactor, no matter what when mined will produce the original reactor.

Blocks Spawned 


  • Before 0.11.0 mining away the Nether Reactor Core during activation would cause eternal night.
  • It is a replacement for the Nether, though the Nether will be added in the 0.12.0 update.
  • If the nether reactor is activated near the edge of the world, it will sometimes turn day to night instantly.
  • If in multiplayer, all Players must be close to the Reactor for it to activate.
  • Before 0.6.0, the tower generated was of Obsidian.
  • The reactor does not work in Creative Mode.
  • Once Update 0.12.0 comes out, the Nether Reactor will not be usable, even if put in correct pattern, it will not generate Tower/Spire. Developers have said it will be given a new use in a future update which may not be comfrimed.

For a gallery, see Nether Reactor/Gallery.

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