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Undertale world

Undertale world

MOD
(mcr)This is a dimensional exploration mod for Undertale. Although my personal technical skills are limited, I strive to recreate and expand the world of Undertale in Minecraft in my own way.
by MoCurieZzx1225
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406 downloads
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Updated Oct 14, 2026
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Biomes World Gen
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Find a small hill in the Overworld. You need to use a Magic Stone — crafted from diamonds, bottles o' enchanting, and three emeralds — to activate the bedrock portal hidden inside the hill, which will take you to a mysterious Underground world.
 
Version 0.1 is very rudimentary, yet it already features two new biomes, a full set of new equipment, several new materials, four new generated structures, and a boss worthy of your challenge — Undyne — waiting for you to discover.

Although there are some limitations, I have decided to continue developing on MCreator. I will combine it with IntelliJ IDEA and try my best to complete the 1.0 official release (waterfall area complete and snowy plains test).

https://mcreator.net/modification/122859/undertale-wrold 

undertale-0.2.0Beta-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-05-01 Get
undertale-0.1.5Beta-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-04-28 Get
undertale-0.1.4Beta-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-04-27 Get
undertale-0.1.3Beta-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-04-26 Get
undertale-0.1.1beta-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-04-25 Get
undertale-0.1.2Beta fix-neoforge-1.21.1.jar
MC Client, 1.21.1, NeoForge
Release 2026-04-25 Get

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