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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 the reactor is built, tap the Core to activate the Nether Reactor.
  • Once you activate the reactor, it will dig 2 squares down, filling it with Netherrack.
  • 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.
  • You can remine the gold blocks when they are red and receive all your items back, then mine the reactor and do it again.

Blocks Spawned 


  • You may save the entire netherrack tower, by mining the nether reactor core, this will halt the process keeping the tower and any glowing obsidian that was spawned.
  • Before 0.11.0 mineing 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 future.
  • If the nether reactor is activated near the edge of the world, it will sometimes turn day to night instantly.
  • It is advised to bring as few items as possible, due to any items you collect in the reactor.
  • If in multiplayer, all Players must be close to the Reactor for it to activate.
  • The Nether Reactor can be used to access The Void in Survival Mode.
  • Before 0.6.0, the tower generated was of Obsidian.
  • If you mine the blocks around the Nether Reactor before they glow red you can get them back but it will be night no matter what.
  • When the process has finish the Nether Reactor may change it color (black). And when you mine it and take to your inventory, it turns normal.
  • Mining the Glowing Obsidian that the reactor spawns will drop regular Obsidian.
  • The reactor will not work in creative mode.

For a gallery, see Nether Reactor/Gallery.

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