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Party SystemMinecraft mod for 1.21.1

A lightweight NeoForge mod that adds a fully-featured party system with a customizable HUD, group chat, and friendly-fire protection. Keep track of your teammates' health and active effects!

client and servernewest supported release 1.21.1AdventureGame Mechanics
Latest version
1.0.4
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
895
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Party System servers

One click and Party System is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Party System declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Party System’s own host. Nothing is re-hosted here.

Most recently published release

1.0.4release2 Jun 2026

partysystem-1.0.4.jar · 0.2 MB · for 1.21.1 · NeoForge

Download this release
c26beadf1615…
Older versions4
  • 1.0.324 May 20261.21.10.2 MB63 downloadsfcd52d8a0277…Get
  • 1.0.223 May 20261.21.10.2 MB20 downloadsf99ce4608db7…Get
  • 1.0.123 May 20261.21.10.2 MB13 downloadsf0d321ad20ab…Get
  • 1.0.030 Apr 20261.21.10.2 MB90 downloadsb7c70dca7464…Get

Frequently asked

Does Party System work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Party System declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Party System on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Party System support?

NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Party System?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Party System under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Party System?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Party System safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 2 Jun 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 52 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .