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Indev 0.31 20100128.png

Java Edition

Release date

January 28, 2010


Client (.json)
No corresponding server



A version of Indev 0.31 was released on January 28, 2010, at 22:31 UTC.[1]



Diamond Ore JE1 BE1.png Diamond ore[note 1]
  • Originally named "Emerald Ore".
  • Not in Indev house block chest.
  • Drops 1-3 diamonds.
Block of Diamond JE1.png Block of diamond[note 1]
  • Originally named "Emerald Block".
  • Not in Indev house block chest.
  • Drops itself.
Gear (N).png Gear[note 2]
  • Could only be obtained by inventory editing and was initially invisible in the inventory.[2]
    • At some point, this was changed to the animated version as seen when placed in the world.
  • A gear's sprite consisted of two parts; the center rod and the animated gear itself.
  • When hacked into the game, a gear could be placed anywhere, but would show nothing in its block space and was invisible unless horizontally adjacent to one or more blocks.
    • The placed gear would then show a gear sprite on the near side of each of those blocks.
  • A placed gear could not be destroyed by mining a block that its gear sprite was shown on, because the placed gear was actually adjacent to that block.
  • If the block a gear sprite was shown on was destroyed, the adjacent placed gear would no longer show that sprite.
    • Removing all blocks adjacent to a placed gear would remove all of its visible gear sprites, leaving the placed gear invisible.
  • Placed gears could not be destroyed directly by the player; attempts to do so would phase through to the block behind it, much like water.
    • A placed gear could only be removed by explosions.
  • Drops itself.


Coal JE1.png Coal[3]
Diamond JE1 BE1.png Diamond[3]
  • Originally named "Emerald".
Gold Ingot JE1.png Gold ingot[3]
Iron Ingot JE1.png Iron ingot[3]
Wooden Sword JE1 BE1.png Wooden Axe JE1 BE1.png Wooden Pickaxe JE1 BE1.png Wooden Shovel JE1 BE1.png
Stone Sword JE1 BE1.png Stone Axe JE1 BE1.png Stone Pickaxe JE1 BE1.png Stone Shovel JE1 BE1.png
Diamond Sword JE1 BE1.png Diamond Axe JE1 BE1.png Diamond Pickaxe JE1 BE1.png Diamond Shovel JE1 BE1.png

World generation[]

Indev House
  • Items added to the tool chest[3]
    • Iron sword
    • All 16 new item types


  • Pressing B opens the crafting menu[1]
    • Crafting is not fully functional yet[4], with the only available recipe being an apple to an arrow.
    • Unlike with the Inventory, you can't move while Crafting.



  • Iron and Gold ore now drop themselves.
  • Coal Ore drops 1-3 coal.


  • Right-clicking on a stack picks up or puts down a single item.[1]
  • Left-clicking on a stack picks up or puts down the entire stack.[1]
    • It does not deposit more items than would create an item stack larger than the maximum stack size.
    • The remainder remains hovering at the pointer.
  • The player can no longer walk while having a chest open.
  • Maximum item stack size changed from 99 to 50 for items in the inventory, and 100 for items inside chests.[3]

World generation[]

Indev house
  • Size of starting item stacks in Indev house chests increased from 99 to 100[3]


  • Fullscreen mode no longer affects GUI's, the Hotbar or displayed text.
  • Armor sprites will no longer display in their respective slots even if the level is reloaded.


From Indev 20091231-2

  • Due to the removal of armor sprites from in-game play, it is no longer possible to grab the sprites out.


  • Graphical glitch when game starts.[1]
    • Clicking corrects it.
  • Pressing a movement key at the same time as opening a chest causes that movement key to get "stuck".



  1. a b Textures for Block of diamond and Diamond ore had been added to the jar's terrain.png texture file by, at the latest, January 28, 2010 17:03 UTC, hours before this version was released.
    • This is known because they are in the later in-20100129 jar's terrain.png, which was last modified at that same exact time.
    • This is evidence that these blocks were added in this version, though as with the gear, they were only been accessible using inventory editing.
  2. Evidence of gear introduction in this version:
    • The in-20100125-2 jar contains no gear textures.
    • The in-20100129 jar does contain gear textures, which are dated January 26, 2010 1:13-1:15 UTC.
    • Notch's January 26, 2010 1:36 UTC YouTube video displays functioning gears.
    • This is evidence that functional gears were in any version released between January 26, 2010 1:15 UTC and January 29, 2010 14:53 UTC.
      • That includes this version.


  1. a b c d e f Phew, got the inventory cleaned up – The Word of Notch, January 28, 2010 22:31 UTC
  2. "Minecraft particles, chests and spitting lava blobs. And a surprise." by Nizzotch. January 26, 2010 1:36 UTC. Archived from the original on April 22, 2018.
  3. a b c d e f g h i "/Indev/ Test" by LegacyMinecraft. January 29, 2010 10:32 UTC.
  4. Crafting on /indev/ now – The Word of Notch, January 29, 2010 15:04 UTC
  5. Published Image - The Word of Notch, January 28, 2010