Kick off Data Pack Dash with a rock-solid setup for Minecraft Java 1.21.7–1.21.10. In this episode, we build a fully compatible datapack using the new 1.21 folder names (tags/function etc.), write a future-proof pack.mcmeta with pack_format 81–88 support, and wire up minecraft:load and minecraft:tick to run your first functions. Then we demo a /function you can run from chat or a command block, plus a simple tick-based detector (gold on emerald) that fires a function.
What you’ll learn:
Correct pack.mcmeta for 1.21.9–1.21.10 (88) and 1.21.7–1.21.8 (81), including supported_formats, min_format, max_format
New singular folder paths (e.g., tags/function)
Setting up load.json & tick.json
Writing load.mcfunction, tick.mcfunction, and your first /function
Live demo: /function + a tick-driven block check → actionbar, particles
⏱ Timestamps
0:00 - Intro
1:25 - Creating Data Pack Folder
4:55 - Using VS Code
7:03 - Required pack.mcmeta Setup
13:51 - Data Folder and Load and Tick JSON
19:20 - Namespace and Load and Tick Function Files
23:54 - Custom Functions and Minecraft Usage
30:15 - Tick Function and Function Calls
36:00 - Outro
Data Pack Wiki: https://minecraft.wiki/w/Data_pack
MCStacker Command Generator: https://mcstacker.net/
Data Pack Generators: https://misode.github.io/
💬 Join the community & get help: / discord