Kore
What it is
Kore is an open-source Kotlin library that generates Minecraft datapacks from code. It runs during the build and produces regular datapack files, so the server does not need Kore or a Kore plugin. Its typed game data helps catch errors in items, blocks, sounds and commands during the build. The project lists 65+ typed commands, 50+ JSON resource types and 80+ generated registries. Supported datapack features include commands, recipes, loot tables, advancements and custom dimensions.
Kotlin functions, loops and variables can generate repeated content. When the typed interface does not cover a command, function bodies can include raw command lines. Existing datapacks can be migrated incrementally, keeping handwritten sections in use alongside generated ones. Kore is available as a Maven Central dependency; the maker recommends a JDK and Kotlin IDE. An optional Gradle plugin can build, link and reload a datapack when files are saved. A browser playground can generate a datapack ZIP. The project focuses on datapack generation, not resource-pack assets, and does not currently ship mod bindings.
For and against
For
- Generates ordinary datapack files at build time.
- Typed game data helps catch mistakes early.
- Supports recipes, loot tables and advancements.
- Can be integrated with an optional Gradle plugin.
- Existing datapacks can be migrated incrementally.
Against
- Requires a JDK and Kotlin IDE for the recommended setup.
- Does not generate resource-pack assets.
- Does not ship bindings for mods.
- Some commands require raw command lines.
The verdict
Kore is aimed at datapack creators who want to generate content from Kotlin and catch some errors during builds. Its output is server-ready without a Kore runtime, but its scope excludes resource-pack generation and supplied mod bindings.
Who it suits
It suits Kotlin developers creating Minecraft datapacks who want typed game data and build-time error checking. A browser playground is available for trying the library and generating a datapack ZIP.
On the record
- Browser playground
- The maker provides a browser playground for trying Kore and generating a datapack ZIP.kore.ayfri.com · read 7 Oct 2026
- Build integration
- Kore offers an optional Gradle plugin that can build, link, and reload a datapack on save.kore.ayfri.com · read 7 Oct 2026
- Build setup
- Kore is available as a Maven Central dependency and the maker recommends a JDK and Kotlin IDE.kore.ayfri.com · read 7 Oct 2026
- Build-time output
- Kore runs when you build and generates vanilla datapack files with no Kore runtime or plugin required on the server.kore.ayfri.com · read 7 Oct 2026
- Build tooling
- The optional Gradle plugin can build, link, and reload the datapack when files are saved.kore.ayfri.com · read 7 Oct 2026
- Code reuse
- Kore supports Kotlin functions, loops, and variables to generate repetitive datapack content.kore.ayfri.com · read 7 Oct 2026
- Compatibility disclaimer
- The site states that Kore is not an official Minecraft product and is not approved by or associated with Mojang or Microsoft.kore.ayfri.com · read 7 Oct 2026
- Early error checking
- Minecraft items, blocks, sounds, and commands come from typed game data so typos fail the build.kore.ayfri.com · read 7 Oct 2026
- Editor integrations
- The site lists an IntelliJ IDEA plugin, a VS Code extension, and a Gradle plugin as compatible tools.kore.ayfri.com · read 7 Oct 2026
- Error checking
- Minecraft items, blocks, sounds, and commands are typed so typos fail during the build rather than at /reload.kore.ayfri.com · read 7 Oct 2026
- Extensibility
- Kore allows raw command lines through addLine() when its DSL does not cover a command.kore.ayfri.com · read 7 Oct 2026
- Game coverage
- The site says Kore supports datapack features including commands, recipes, loot tables, advancements, and custom dimensions.kore.ayfri.com · read 7 Oct 2026
- License
- The site links the project’s GPL-3.0 license.kore.ayfri.com · read 7 Oct 2026
- Migration
- Existing datapacks can be moved to Kore incrementally while hand-written parts continue running alongside them.kore.ayfri.com · read 7 Oct 2026
- Mod bindings
- Mods can be used through user-written bindings, but Kore does not currently ship bindings for any mod.kore.ayfri.com · read 7 Oct 2026
- Mod support
- Datapacks and mods can be referenced through bindings, but Kore currently does not ship bindings for mods.kore.ayfri.com · read 7 Oct 2026
- Purpose
- Kore is a Kotlin library that generates regular Minecraft datapacks.kore.ayfri.com · read 7 Oct 2026
- Resource packs
- Kore currently focuses on datapack generation and does not generate resource pack assets such as textures or models.kore.ayfri.com · read 7 Oct 2026
