For the method to duplicate items and blocks, see Tutorial: Block and item duplication.
minecraft:dupe_hack is a joke item exclusive to Java Edition 23w13a_or_b. It does not have an item model.
Obtaining
Once the dupe_hack_occurrence_chance vote is approved, the dupe hack item has a random chance of dropping whenever an entity with chests is killed by a player, e.g. when destroying a minecart with chest with a sword.
It doesn't appear in the Creative inventory, not even when the option "Operator Items Tab" is enabled, but can be given to the player with /give and other commands.
Usage
The dupe hack item can be used to create a limited amount of duplicate items by placing it on a crafting table with any other item. It has a random chance of breaking, controlled by the dupe_hack_break_chance vote. This limitation can be mitigated by putting the items in a shulker box first and then duplicating the box.
Crafting ingredient
| Ingredients | Crafting recipe | Notes |
|---|---|---|
| Any Item + Dupe Hack |
The dupe hack item remains in the crafting grid after duplicating an item. |
Data values
ID
| Name | Identifier | Form | Translation key |
|---|---|---|---|
 minecraft:dupe_hack | dupe_hack | Item | block |
Issues
Issues relating to "Dupe Hack" are not maintained on the bug tracker because it is an April Fools' joke, and is therefore not in the newest stable version or snapshot. Issues reported there are closed as "Invalid".
