ModsFinder

Forgotten.jar

by Angyman

Forgotten.jar is a NeoForge horror mod for Minecraft 1.21.1 that adds new dimensions and random events to the game.

NeoForgeClient and serverAll rights reserved1.21.1

What it does

Forgotten.jar brings unsettling dimensions and unpredictable events into the vanilla game, and its eerie tone comes from loud sounds and an overall atmosphere of dread. The author describes the project as in early development, so players should expect bugs and a limited amount of content for now. The author notes that the mod can interact with the computer it runs on.

The mod runs on the client and on the server, so the server and every player need it installed for the same version. Files are published for NeoForge only, for 1.21.1 alone, and the latest file is 0.3, released as a beta on 2026-06-14. The mod is released under All rights reserved and is not open source. The author tested it in multiplayer, and a public issue tracker is available for reporting problems.

Key features

  1. New dimensions

    The mod adds new dimensions that players can travel to, each with its own atmosphere.

  2. Random events

    Unscripted events can happen during play, so the same session does not always unfold the same way.

  3. Loud sound design

    Sudden loud sounds are part of the horror effect, so players may want to adjust their volume before playing.

  4. Early development

    The author marks the project as early development, and bugs are expected in the current beta builds.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.10.3
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Subota is a NeoForge mod for 1.21.1 that is also client and server and released under All rights reserved, so it shares the same version and environment as Forgotten.jar. This is NOT a Horror is a NeoForge mod for 1.21.1 with the same client and server environment and the same license. Something Watches targets 1.21.8 on NeoForge, a version Forgotten.jar does not support.

ModLoadersGame versionsEnvironmentUpdated
Forgotten.jarNeoForge1.21.1Client and server2026-06-14
SubotaNeoForge1.21.1Client and server2026-03-27
This is NOT a HorrorNeoForge1.21.1Client and server2026-09-04
Something WatchesNeoForge1.21.8Client and server2026-04-19

Questions

Does Forgotten.jar need to be installed on the server?

Yes. The environment is client and server, so the server and every player need the mod for the same version of 1.21.1.

Which loader does Forgotten.jar support?

Only NeoForge. Files are published for NeoForge alone, so Fabric and Forge players cannot use the mod.

Can Forgotten.jar be changed or redistributed?

The mod is under All rights reserved and is not open source, so its code is not available for reuse under an open license.

In the catalog

Forgotten.jar is one of 7,555 Cursed mods on ModsFinder, and one of 2,801 Cursed mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

Cursed mods7,555NeoForge modsMods for 1.21.132,366

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What the author says

THIS MOD IS EARLY IN DEVELOPMENT EXPECT BUGS!!!! Forgotten.jar is a minecraft horror mod that leans more into making you feel paranoid instead of throwing jumpscares at you If you're looking for a nice horror mod that doesn't just rely on jumpscares, then this is for you Forgotten.jar adds new dimensions and random…
Angyman, on the Modrinth page

Official listing

Owner
Angyman
Published
2026-06-05
Updated on Modrinth
2026-06-14
Facts verified
2026-10-15

Tags

CursedGame mechanicsMobsAdventure
Open on ModrinthCompare