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- Updated
- January 23, 2026Jan 23
- Published
- in 2025
GUI · swipe
At a glance
Runs on Fabric and Forge
For Minecraft 1.20–1.20.1
Needed in the game and on the server
Latest version — 1.0.3 from January 23, 2026
License MIT — free
Where it's neededGame versions1.20–1.20.1
In gamerequiredOn serverrequired
Needed both in the game and on the server
Basic Gameplay
- Added replication cores of different qualities to copy items under various conditions.
- Defeating the Ender Dragon automatically grants all nearby players materials to craft replication cores: Dragon Soul Crystal. Drops 3 on the first kill and 1 on subsequent kills (configurable in the settings file).
- Replicating items requires a Replication Table. Each replication consumes experience levels, calculated based on the item count and number/levels of enchantments (configurable in the configuration file).
- Experience cost formula:
Final Cost (rounded up) = Item Count × Item Cost + Sum of (Enchantment Level × Enchantment Cost)
Screenshots

Configuration Guide
{
// Enable whitelist
"whitelistEnabled": false,
// Replication whitelist
"whitelist": [
// "Item ID / #Item Tag / @Mod ID / $Regex"
"item_id",
"#item_tag",
"@minecraft",
"$minecraft:.*_sword"
],
// Enable blacklist
"blacklistEnabled": false,
// Replication blacklist
"blacklist": [
// "Item ID / #Item Tag / @Mod ID / $Regex"
"item_id",
"#item_tag",
"@minecraft",
"$minecraft:.*_sword"
],
// Copying replication cores is prohibited
"forbidReplicatingCores": true,
// Dragon Soul Crystal drop count
"crystalDroppingCount": 1,
// Dragon Soul Crystal drop count (first kill)
"firstCrystalDroppingCount": 3,
// Max drop range for crystals (blocks)
"maxDropDistance": 256,
// Cost settings
"costConfig": {
// Default item cost
"defaultCost": 0.25,
// Custom item costs
"customCosts": {
// "Item ID": Cost
"item_id": 0.5,
"item_id2": 1.0
},
// Enable enchantment cost calculation
"calculateEnchantmentCosts": true,
// Default enchantment cost
"defaultEnchantmentCost": 2.0,
// Ignore cursed enchantments
"ignoreCurses": true,
// Custom enchantment costs
"customEnchantmentCosts": {
// "Enchantment ID": Cost
"enchantment_id": 1.0,
"enchantment_id2": 1.5
},
// Default container config
"defaultContainerConfig": {
// Whether to calculate the cost of items in the container
"enabled": true,
// Whether to recursively calculate the cost of items in the container
"recursive": true,
// Whether to exclude the original cost of container
"excludeOriginalCost": false,
// The NBT tag path of container to parse items and use '.' to split
// The last element must be the list type data
"tag": "BlockEntityTag.Items"
},
// Customize container config, fields are the same as above
"customContainerConfigs": {
// "Item ID": Config
"minecraft:bundle": {
"enabled": true,
"recursive": true,
"excludeOriginalCost": false,
"tag": "Items"
}
}
}
}FAQ
How to install RepliCore?
Install Fabric for your Minecraft version, download RepliCore for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does RepliCore support?
RepliCore has builds for Minecraft 1.20–1.20.1.
Is RepliCore needed on the server?
Needed in the game and on the server
License and source
MIT Licensefree to use and share with credit to the author