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Java Edition Alpha v1.2.0

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Alpha v1.2.0, also known as the Halloween Update, was released with server 0.2.2 on October 30, 2010, adding the Nether along with new Nether-exclusive mobs and blocks. It also added fishing, a new terrain generator, and other changes and fixes. This version is listed in the launcher, but attempting to play it downloads Alpha v1.2.0_02 instead.[2]



Netherrack JE1.png Netherrack
Soul Sand JE1 BE1.png Soul Sand
Glowstone JE1.png Glowstone
Carved Pumpkin (S) JE1 BE1.png Carved Pumpkin
Jack o'Lantern (S) JE1 BE1.png Jack o'Lantern
Nether Portal JE1.png Nether Portal


Clock JE2 BE2.png Clock
  • Craftable item that tells the time
Glowstone Dust JE1 BE1.png Glowstone Dust
Cooked Cod JE1 BE1.png Cooked Fish
Raw Cod JE1 BE1.png Raw Fish


Ghast Revision 1.png Ghast
Zombified Piglin JE2.png Zombie Pigmen
  • When one pigman is attacked all nearby pigmen will retaliate and attack the player.
  • Hold gold swords.[4]

World generation[edit]

  • New terrain generator, featuring biomes
The Nether
  • A biome that has sand and a lot of water.
  • A biome that has snow and ice. Earlier there was Winter mode but that was removed in this version.
  • A biome that barely has trees.
  • A biome that spawns in hills.
Rain Forest
  • A small biome that spawns in forests and rains a lot.
Seasonal Forest
  • A biome that is denser than a forest biome. It only spawns oak trees, unlike Forest biome.
  • A small biome that barely has trees and shrubs.



  • Added new music tracks and sound effects.
  • Added new splashes:
    • Slow acting portals!
    • Try the Nether!
    • Don't look directly at the bugs!
    • Oh, ok, Pigmen!
    • Finally with ladders!
    • Scary!



Stairs and furnaces
  • Now face the same direction as the player when placed.
Grass Block and Leaves
  • Are now darker in shade, and their color is now dependent on temperature/precipitation values.


  • Higher lighting values are required the deeper they are to keep mobs from spawning.
  • Now have new sounds.
Skeleton Revision 2.png Skeletons
  • Completely removed from mob spawning code.

World Generation[edit]


  • Sunrise now creates a red glow at the horizon.
Heads-up display
  • Pressing F1 hides the HUD and the view-model from the person's view. In third person mode, pressing F1 will create a view looking back at the player's own face.


Menu screen
  • Changed Minecraft logo from Java Edition 2.png to Java Edition 6.png.


  1. The Halloween Update is out! – The Word of Notch, October 30, 2010
  2. MCL-1421
  3. The fireballs were using snowball texture when shot.
  4. This change occurred between the Alpha v1.2.0 preview and the full release of Alpha v1.2.0.