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Kore

kore.ayfri.com

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What it is

Kore is a Kotlin library for generating Minecraft datapacks from code. It runs during the build and produces ordinary datapack files, so the server does not need Kore or a Kore plugin. Its typed game data can catch errors in items, blocks, sounds, and commands before a datapack is reloaded. The site lists 65+ typed commands, 50+ JSON resource types, and 80+ generated registries. Kore supports commands, recipes, loot tables, advancements, custom dimensions, functions, and predicates; Kotlin functions, loops, and variables can also generate repeated content. If its typed DSL does not cover a command, function bodies can include raw command lines. Existing datapacks can be moved over gradually, with handwritten parts continuing to run alongside generated ones. Kore is available as a Maven Central dependency, and the maker recommends a JDK and Kotlin IDE. An optional Gradle plugin can build, link, and reload a datapack on save. A browser playground can generate a datapack ZIP. The project is free and open source.

Spec sheet

What it does
Kore is a Kotlin library that generates regular Minecraft datapacks from Kotlin code.Read 7 Oct 2026 · kore.ayfri.com
Purpose
Kore is a Kotlin library that generates regular Minecraft datapacks.Read 7 Oct 2026 · kore.ayfri.com
Support
The maker points users to Discord, Slack, documentation, GitHub issues, and an email contact.Read 7 Oct 2026 · kore.ayfri.com
License
The site links the project’s GPL-3.0 license.Read 7 Oct 2026 · kore.ayfri.com
Browser playground
The maker provides a browser playground for trying Kore and generating a datapack ZIP.Read 7 Oct 2026 · kore.ayfri.com
Build integration
Kore offers an optional Gradle plugin that can build, link, and reload a datapack on save.Read 7 Oct 2026 · kore.ayfri.com
Build setup
Kore is available as a Maven Central dependency and the maker recommends a JDK and Kotlin IDE.Read 7 Oct 2026 · kore.ayfri.com
Build tooling
The optional Gradle plugin can build, link, and reload the datapack when files are saved.Read 7 Oct 2026 · kore.ayfri.com
Build-time output
Kore runs when you build and generates vanilla datapack files with no Kore runtime or plugin required on the server.Read 7 Oct 2026 · kore.ayfri.com
Code reuse
Kore supports Kotlin functions, loops, and variables to generate repetitive datapack content.Read 7 Oct 2026 · kore.ayfri.com
Compatibility disclaimer
The site states that Kore is not an official Minecraft product and is not approved by or associated with Mojang or Microsoft.Read 7 Oct 2026 · kore.ayfri.com
Early error checking
Minecraft items, blocks, sounds, and commands come from typed game data so typos fail the build.Read 7 Oct 2026 · kore.ayfri.com
Editor integrations
The site lists an IntelliJ IDEA plugin, a VS Code extension, and a Gradle plugin as compatible tools.Read 7 Oct 2026 · kore.ayfri.com
Error checking
Minecraft items, blocks, sounds, and commands are typed so typos fail during the build rather than at /reload.Read 7 Oct 2026 · kore.ayfri.com
Extensibility
Kore allows raw command lines through addLine() when its DSL does not cover a command.Read 7 Oct 2026 · kore.ayfri.com
Game coverage
The site says Kore supports datapack features including commands, recipes, loot tables, advancements, and custom dimensions.Read 7 Oct 2026 · kore.ayfri.com
Migration
Existing datapacks can be moved to Kore incrementally while hand-written parts continue running alongside them.Read 7 Oct 2026 · kore.ayfri.com
Mod bindings
Mods can be used through user-written bindings, but Kore does not currently ship bindings for any mod.Read 7 Oct 2026 · kore.ayfri.com
Mod support
Datapacks and mods can be referenced through bindings, but Kore currently does not ship bindings for mods.Read 7 Oct 2026 · kore.ayfri.com
Resource packs
Kore currently focuses on datapack generation and does not generate resource pack assets such as textures or models.Read 7 Oct 2026 · kore.ayfri.com
Setup
The maker says Kore requires a JDK and Kotlin IDE and is published as a regular dependency on Maven Central.Read 7 Oct 2026 · kore.ayfri.com
Typed coverage
The site lists 65+ typed commands, 50+ JSON resource types, and 80+ generated registries.Read 7 Oct 2026 · kore.ayfri.com
Unsupported commands
Function bodies accept raw command lines through addLine when the typed DSL does not cover a needed command.Read 7 Oct 2026 · kore.ayfri.com
Vanilla output
Kore runs at build time and outputs a regular datapack that needs no Kore runtime or plugin on the server.Read 7 Oct 2026 · kore.ayfri.com

Strong points and limits

Strong points

  • Typed game data catches errors during builds.
  • Generates regular datapacks without a server plugin.
  • Supports functions, recipes, loot tables, and advancements.
  • Gradle plugin can reload on save.
  • Browser playground generates a datapack ZIP.

Limits

  • Does not generate textures or models.
  • Does not ship bindings for mods.
  • Requires a JDK and Kotlin IDE, as recommended.

Who it suits

Kore suits Kotlin developers building Minecraft datapacks who want typed checks and code reuse. It may also suit teams migrating existing datapacks gradually or trying the browser playground first.

Verdict

Kore combines typed datapack generation with build-time output that works without a Kore server component. Its limits are its focus on datapacks and the absence of bundled mod bindings.

Where Specifiction places it

Alternatives to KoreAll alternatives →