DatapacksJava
Beter Ultra Hardcore
Improving hardcore redim for playing both on a server with friends and in the local world in hardcore mode. Free Minecraft Java datapack for 1.21.2…
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.2, 1.21.3, 24w44a
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as UHK-1.5_MC1.21.2-26.2.zip
- Download size: 4 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.