Java Edition 13w16a

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Minecraft 13w16a

Java Edition



Release date

April 18, 2013

Snapshot for



Client (.json)
Server (.exe)

Protocol version


13w16a is the first snapshot for Java Edition 1.6.1, released on April 18, 2013.[1]

13w16a was reuploaded an hour after release.[more information needed]



  • Carpets are made using 2 of the player's desired colors of wool in a horizontal line
Hay Blocks
  • Can be placed in all orientations, just like wood.


Horse armor
  • Exist in diamond, iron and gold variants.
  • Crafted with six iron/gold/diamond and a wool block.
Horse saddle
  • Stack to 32.
  • Crafted with five leather and three iron ingots.
  • Can be used to bind mobs to fences or lead them around.
  • Right-click mob first, then right-click fence or right-click the mob again to get the lead back.
Horse spawn egg
  • When used, a different horse breed is created each time.
  • Works like any other spawn egg.


  • Like horses, but can carry chests on their back although no inventory is currently available.
  • Can be bred with horses to make a mule.
  • Ridable by right-clicking them, move with usual movement keys, maximum speed, and jump height differ between horses.
  • Have various amounts of maximum health, use wheat and carrots to heal them.
  • Drop leather when killed.
  • Can be bred using wheat – baby horses can be grown using apples, golden apples, wheat, and hay bales.
  • Players can make them jump by pressing and holding the space bar.
  • They naturally step up over 1 block, which enables you to walk up hills.
  • They can also use ladders, when steered towards them.
  • Creation assisted by DrZhark (Creator of the Mo' Creatures mod).
  • There is an undead and skeleton version of the horse included in the code, although they require NBT editing to view in-game.
  • Mules can be obtained by breeding a donkey and a horse.



  • Changed the idea of mob difficulty.[2]
    • Regional difficulty: The longer the player stays in one area, the harder it gets.
    • Scales with difficulty – Items, enchants or AI improve with difficulty.


  • Improved Respiration.
    • Now also helps seeing underwater (this depends on the enchantment level, ranging from 1–3).
  • Add mob's health bar to the Heads-up display when riding on it (both pigs and horses).
  • When riding something, like a mob or a boat, dismounting is only possible using the Sneak key, ⇧ Left Shift by default.


  • Added Mo' Creatures developers to credits.txt.
Directory structure
  • .minecraft directory structure is changed:
    • assets folder; stores resources such as language packs and sounds.
      • All music discs now use .ogg format instead of .mus format.
    • library folder; stores Java libraries such as LWJGL and jinput.jar.
    • versions folder; there are files version.json (meta data) and folders that stores minecraft.jar for each versions (but its name is the same as its version; the jar for 13w16a is versions/13w16a/13w16a.jar).


  • This is the earliest snapshot available in the Minecraft launcher. Although earlier snapshots are not available in the launcher, they are archived.


6 issues fixed
From released versions before 1.6.1
  • MC-3090 – Unable to play game unless LWJGL is manually replaced.
  • MC-4253 – Endermen are rendered hostile if they take environmental damage.
  • MC-5674 – Client can control if they take damage and abuse this / ALT or F10 freezes client in windowed mode.
  • MC-11229 – Using the anvil for free.
  • MC-12017 – Can get permanently stuck in a minecart in a nether portal.
  • MC-12369 – Minecraft crashing on 1.5.1 prerelease server.