Kore vs mDirt

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.

mDirt is a free Windows GUI for creating custom Minecraft datapacks without coding. Guided generators cover blocks, items, recipes, paintings, structures, and equipment, with built-in validation for their fields. The application exports a datapack and resource pack into an exports folder. Structure tools accept Minecraft-generated .nbt files and let users specify details such as spawn rules. Equipment creation includes options such as horse armor, item textures, model textures, and armor points. The README lists full feature support for Minecraft 1.21.4, 1.21.5, 1.21.6, 1.21.7, and 1.21.8. A beta release adds text and potion generators; the potion generator outputs a /give command, while text click and hover events are unsupported. That beta may contain incomplete or unstable features while the interface is refined. mDirt runs on Windows 10 or later, comes as an installer or portable ZIP, requires 130 MB of free disk space, and recommends at least 4 GB of memory. It uses GPL-3.0.