Minecraft datapacks written in Kotlin with Kore, a library that generates datapacks from a Kotlin DSL instead of hand-written JSON and .mcfunction files.

Each folder is a standalone example, from a single recipe to a complete game. Their generated output is committed in out/, so you can compare the Kotlin with the datapack it produces.

An idle mining tycoon on a floating island: punch a giant ore, buy drills that mine for you, grab golden nuggets, evolve the core through 8 levels and prestige. Co-op, pure vanilla, playable in singleplayer.

It shows how a full game fits together with Kore:

• Clickable interaction entities detected with advancements.
• Live holograms, a sidebar and a boss bar with formatted numbers.
• A pause screen menu built with the Menu helper, usable without operator rights.
• Scoreboard math on fake players with the oop module, macros, storage and a procedurally generated island.

A recreation of the MoreApples datapack by Stoupy51: every type of leaves can drop apples, twice as often as vanilla oak leaves.

It shows how to:

• Override vanilla loot tables for all leaves.
• Use predicates and conditions such as Silk Touch checks.

A recreation of the rotten-flesh-to-leather datapack: smoke rotten flesh for leather and smelt it for brown dye.

It shows how to add smelting and smoking recipes.

The examples build with the JetBrains Kotlin toolchain, whose wrapper is committed and downloads the toolchain on its first run.

./kotlin run -m ore-tycoon       # Windows: .\kotlin.bat run -m ore-tycoon

The datapack is generated in out/<pack name>. With the CI environment variable set, a .zip is generated instead.

project.yaml includes every folder holding a module.yaml, so a new example only needs its own folder.

1. Generate the datapack, or download it from Modrinth.
2. In Minecraft, select your world, click Edit, then Open World Folder.
3. Copy the datapack folder or .zip into the datapacks folder.
4. Open the world, or run /reload if it is already open.

.github/workflows/publish.yml publishes one example to Modrinth per GitHub release. The release tag picks the example and the version: ore-tycoon-v1.0.0 builds ore-tycoon and uploads ore-tycoon-1.0.0.zip with its CHANGELOG.md. The workflow can also be started by hand from the Actions tab.

The Modrinth project of each example is set in the workflow and needs a MODRINTH_TOKEN repository secret, see ore-tycoon/PUBLISHING.md.

This project is licensed under the GNU v3 License, see the LICENSE file for details.

Created with ❤️ using Kore.