How do I install LifeTether?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does LifeTether work with?

The listing gives Minecraft 1.21.9, 1.21.10, 1.21.11. This is the version stated by the author or source site, not something we verified ourselves.

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DatapacksJava

LifeTether

by hmoobtachi · on Modrinth

Which Minecraft do you have?

Every version of the game needs its own build. Pick yours, then download — the wrong build installs fine and then does nothing in the game. This mod is built for Data pack only.

Minecraft 1.21.9–1.21.11Newest
Minecraft 1.21–1.21.8

⬇ Download for 1.21.9–1.21.11 ⬇ Download for 1.21–1.21.8

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.

Open in MC Java Mods Get it on Google Play →

🔗 LifeTether

Transforms your world into a high-stakes group challenge where all players share a single life. Every player in the world is linked by a tether — when one person dies by any cause, the tether breaks and everyone dies together.

🔧 Features:

One shared life pool for all Survival/Adventure players
Lightning flashes on wipe for dramatic effect
Works seamlessly in all 1.21.x versions

🔥 LifeTether is ideal for players who want:

A hardcore co-op experience
Shared responsibility for survival
Tense decision-making with friends
Funny moments with friends

📖 This datapack is enabled by default when added to your world, and works perfectly in:

Singleplayer
LAN sessions
Multiplayer servers

⚙️ Toggleable at any time using:

/function lifetether:on
/function lifetether:off

ℹ️ Extra Information:

A Discord server may be created in the future for updates and communication.
Known limitation: In Minecraft 1.21–1.21.8, the datapack may not display the initial startup message in yellow/gold text (see the In-game text image). Functionality is unaffected.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.9, 1.21.10, 1.21.11
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 LifeTether_1.21.9+.zip
Download size: 68 KB
Download link checked 21 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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All Datapacks for Java All Minecraft Java mods Java mods for 1.21