Do I need to code to make a Minecraft datapack?

No. Pick the gamerules and difficulty you want and download a datapack. It runs a function on every load that sets them, so you never retype /gamerule commands after a world reset.

Where do I install the datapack?

Drop the downloaded zip into your world's datapacks folder (world/datapacks/), then run /reload or restart. It works on a vanilla server - no mods needed.

Which Minecraft version does it target?

You choose. The tool writes the correct pack_format and uses the right folder names for that version (Minecraft 1.21 renamed the data pack folders, e.g. functions to function).

Tools / Minecraft

Minecraft Datapack Generator

Pick your gamerules and difficulty, get a datapack that applies them on every load - no retyping /gamerule after a reset. Works on a vanilla server, no mods. We write the correct pack_format and folder names for your version (1.21 renamed them).

Pack

Pack name

Minecraft version

Difficulty

Gamerules (leave on "default" to skip)

Keep items on death keepInventory

Mobs can change blocks (creepers, endermen) mobGriefing

Day/night cycle advances doDaylightCycle

Weather changes doWeatherCycle

Fire spreads doFireTick

Phantoms spawn doInsomnia

Health regenerates from food naturalRegeneration

Skip the respawn screen doImmediateRespawn

Players take fall damage fallDamage

Show death messages in chat showDeathMessages

Random tick speed (crops, fire, leaf decay) randomTickSpeed

% of players needed to skip night playersSleepingPercentage

Generating...

How it works

A datapack is a zip with a pack.mcmeta and JSON/function files under data/. This one ships a function tagged minecraft:load, so the gamerules and difficulty apply automatically every time the world loads or you run /reload. Drop the zip in world/datapacks/ on a vanilla server.