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Memory Leak project artwork

Modrinth · Minecraft mod

Memory Leak

The world remembers every death you've ever had. The longer you play, the faster reality rots, distorts, and goes mad — ghosts of the past come to watch you, blocks whisper.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Memory Leak release should I use?

Updated 11 days ago
Latest stable file 1.0.3
Game version 26.1, 26.1.1, 26.1.2
Loader Fabric

Memory Leak 1.0.3 targets 26.1, 26.1.1, 26.1.2 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.

Where it goes

Is Memory Leak required on the client, server, or both?

Installation on the client is optional. Installation on the dedicated server is optional.

Client Optional
Dedicated server Optional
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source marks this as usable on both the client and server.

What else does Memory Leak 1.0.3 need?

1.0.3. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Memory Leak without breaking your instance.

Built for Memory Leak 1.0.3. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 1.0.3. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Installation on the client is optional. Installation on the dedicated server is optional.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 1.0.3. It opens that exact file at the source.

About this project

What does Memory Leak add?

Psycho-meta-horror mod

Version
Minecraft
Fabric
Java

Modrinth
Side
License

Discord
Telegram
GitHub


Memory Leak

Memory Leak is a psychological horror mod for Minecraft that doesn't rely on jump scares, bosses, or weapons. Instead, it offers a different kind of fear — slow, creeping, imperceptible. It doesn't attack you directly. It simply changes the world around you until you can no longer tell where the game ends and something else begins.


About the Mod

Every time you create a new world, you expect a blank slate. A place for your stories, your builds, your adventures. But what if this purity is just an illusion? What if every world carries the memory of what came before? What if that memory doesn't die, but accumulates, seeps, flows — and one day finds a way out?

Memory Leak explores the idea that the world of Minecraft doesn't just generate — it retains traces of everything that has happened within it. And when there are too many of these traces, when memory overflows, it begins to leak into new worlds. Into your world.

You start the game as usual: building, mining, exploring. But gradually, you notice that the world is becoming less predictable. Blocks refuse to stay where you placed them. Sounds ring out wrong. Shadows at the edge of your vision vanish when you turn to look. Sometimes you feel like someone is watching you — but when you turn around, there's no one there.

The mod doesn't announce its presence. It doesn't try to scare you. It tries to convince you — that something is wrong with this world. That you are not the first one here. And that everything happening is no accident.


Gameplay

Memory Leak doesn't add new enemies, weapons, or quests. Instead, it transforms the very experience of playing. The world becomes alive — in the most unsettling sense of the word. It breathes. It remembers. And it changes depending on how long you've been there and what you've done.

The longer you play, the more the world begins to "leak." At first, it's almost imperceptible: slight distortions, strange sounds, inexplicable little things. But over time, they accumulate. The world begins to decay — not physically, but structurally. You still see familiar blocks and biomes, but they no longer feel real. Colors that are too perfect. Silence that is too dense. Lines that are too straight.

And then things start appearing that shouldn't be there. Strange structures that no one built. Entities that aren't mobs, but that you notice from the corner of your eye. Signs left by those who were here before you. Or by those who never left.

The mod doesn't explain what's happening. You have to gather clues yourself — through signs found in ruins, through strange items in chests, through voices you hear when you think you're playing alone.


Atmosphere and Delivery

Memory Leak's greatest weapon is doubt. When something inexplicable happens, you ask yourself: is this part of the game, or is it just a bug? The mod deliberately blurs this line. The strangeness is stylized so that it could be mistaken for technical glitches — until you realize it's too consistent, too persistent, to be random.

Sound design plays a key role. This isn't musical horror with sharp stings. It's quiet, almost imperceptible changes: muffled footsteps, distant sounds that shouldn't be there, unnatural silence that grows heavier with every hour of play.

Visually, the mod doesn't shout either. No blood-soaked screens or distorted faces. Just barely noticeable changes: blocks that have shifted slightly, shadows that are slightly darker, colors that have become slightly too bright. Enough to make you feel uneasy. Enough to make you start doubting.


Gallery

Screenshots

Click any image to enlarge. Better experienced first-hand.


Requirements & Installation

Requirements
  • Minecraft 26.1.x
  • Fabric Loader
  • Fabric API
  • Java 25+
How to install
  1. Install Fabric Loader for Minecraft 26.1.x.
  2. Download the latest Fabric API.
  3. Drop Fabric API and Memory Leak into your mods/ folder.
  4. Launch the game with Java 25+.

For the full experience on servers, install the mod on both the server and every client.

FAQ

Is Fabric API required?
Yes. The mod won't load without it.

Does it work in multiplayer?
Yes — it runs on both client and server. Install it on both sides.

Can I add it to an existing world?
You can, but it's best to start fresh.

Found a bug?
Report it on GitHub Issues or in our Discord.


Bug Reports & Feedback

If you encounter any issues, glitches, or unexpected behaviour — whether it's a technical bug or something that feels too intentional — please let us know. Your reports help make the mod more stable and the experience more consistent (or unsettling, depending on how you look at it).

You can report bugs here:
👉 GitHub Issues

When reporting, please include:

  • Mod version
  • Minecraft version
  • Fabric loader version
  • Log files (if possible)
  • Steps to reproduce the issue

We also welcome feedback, suggestions, and theories about the mod's lore — feel free to share them in our Discord or Telegram.


Your world is not a world. It's a file that was never closed.


Links

Discord
Telegram
GitHub
Modrinth
CurseForge

© Kasperoid — All Rights Reserved

Project description from Modrinth.

Pick your setup

Memory Leak by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

3 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Memory Leak versions and loaders

4 of 4 releases match

Looking for an older file? The official Modrinth project page is in Resources.