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A Happy World.jar [Horror]Minecraft mod for 1.20.1

A psychological horror mod that breaks the fourth wall and alters the game experience in unsettling ways.

client onlynewest supported 1.20.1MobsGame MechanicsWorldgenCursed
Latest version
2.5.0
Minecraft
1.20.1
Java
Java 17+
Loader
Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
16.3k
Updated
2 mo ago
Available on
Modrinth

Screenshots

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

Minecraft versions

Every version A Happy World.jar [Horror] declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Forge17+declared12 Jun 2023

Download

From A Happy World.jar [Horror]’s own host. Nothing is re-hosted here.

2.5.0release19 Jul 2026

ahappyworld-2.5.0.jar · 2.0 MB · for 1.20.1

Download latest
6236bd64dbbc…
Older versions6
  • 2.4.021 Mar 20261.20.183.9 MB14.3k downloads61d2572bb004…Get
  • 2.3.08 Mar 20261.20.183.9 MB468 downloadsf6abca6af82b…Get
  • 2.2.08 Feb 20261.20.183.9 MB742 downloads1be553555015…Get
  • 2.1.07 Feb 20261.20.12.1 MB23 downloads072515644503…Get
  • 2.0.07 Feb 20261.20.12.1 MB73 downloads1d5da7728747…Get
  • 1.0.07 Feb 20261.20.12.1 MB24 downloads737788edf0c7…Get

Frequently asked

Does A Happy World.jar [Horror] work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version A Happy World.jar [Horror] 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 A Happy World.jar [Horror] on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does A Happy World.jar [Horror] support?

Forge. 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 A Happy World.jar [Horror]?

On the newest Minecraft version it supports, Java 17 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is A Happy World.jar [Horror] under?

LicenseRef-All-Rights-Reserved, 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 A Happy World.jar [Horror]?

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 A Happy World.jar [Horror] 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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 19 Jul 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .