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Lost Soul

Mod

A horror mod based on the setting of the game Undertale. Have fun playing, partner =)

Type

Mod

Modrinth Downloads

410

Modrinth ID

A31Eat8d

Last Updated

Jul 30, 2026

Description

You have wielded the blade countless times, slaying every monster in the underground world.

300 times, 500 times, the numbers have long become blurred. In pursuit of the so-called "perfection", you even tampered with the game's core files.

However, this time, the game refuses to be dominated by you anymore.

The data began to become chaotic, the screen flickering and distorted, and the monsters that should have disappeared returned in an even more terrifying form. Chara's mockery, misplaced texts, and the constantly recurring memories of massacres - they are no longer mere codes, but real nightmares.

In this out-of-control archive, you must confront the monsters you have created with your own hands, and search for the only and true "Save" amidst the endless bizarre events.

What else can you save? Or are you the one who needs to be saved?

Compatibility

Mod Loaders

Forge

Game Versions

1.20.1 1.20.2 1.20.3 1.20.4 1.20.5

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

As an Amazon Associate I earn from qualifying purchases.

Screenshots

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External Resources