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Undertale modded

An Undertale mod, new items, new blocks, new armor, new weapons, new food, new structure and new trades.
by nipabag
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33,969 downloads
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Updated Jun 30, 2026
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This mod is based on the game Undertale by Toby Fox. This mod contains new items, tools, blocks, structures, painting, armour, weapons, villager/wandering trader trades and advancements. Most of the items, food, weapons, advancements and tools contain flavor text.

 

* When using commands the name of the file is  ---> testmod <--- so any give and locate command uses this instead of minecraft.

* Most recipes are in the crafting book.

* Check the images for a preview of the mod. 

* Decoration blocks are crafted in the stone cutter with amalgamation ingots. 

* Because of how MCreator works i can't go back once i update my mod to a newer version of Minecraft so older version will not be updated with new stuff.

* Allom tools require netherite or any modded tool with equal level to mine, to upgrade to allom tools you use the smithing table with a allom smithing template.

* Of note: If you just want the mod with none of the survival aspect's and more leaning towards Undertale mechanics then go check out my other project: Undertale Modded Props. <--(not been updated in a while)

 

 

 

* (the end goal of every adventure is to have fun)

UndertaleMod-1.21.4-2.17.9.jar
MC 1.21.4, NeoForge
Release 2025-10-31 Get
UndertaleMod-1.21.4-2.16.9.jar
MC 1.21.4, NeoForge
Release 2025-07-23 Get
UndertaleMod-1.21.4-1.16.8.jar
MC 1.21.4, NeoForge
Release 2025-07-20 Get
UndertaleMod-1.21.4-1.15.8.jar
MC 1.21.4, NeoForge
Release 2025-03-29 Get
UndertaleMod-1.20.1-2.15.7.jar
MC 1.20.1, Forge
Release 2025-03-25 Get
UndertaleMod-1.20.1-2.15.6.jar
MC 1.20.1, Forge
Release 2025-03-24 Get
UndertaleMod-1.20.1-2.14.6.jar
MC 1.20.1, Forge
Release 2025-03-08 Get
UndertaleMod-1.20.1-2.13.6.jar
MC 1.20.1, Forge
Release 2025-03-07 Get
UndertaleMod-1.20.1-2.12.5.jar
MC 1.20.1, Forge
Release 2025-02-15 Get
UndertaleMod-1.20.1-2.12.6.jar
MC 1.20.1, Forge
Release 2025-02-15 Get
UndertaleMod-1.20.1-2.11.5.jar
MC 1.20.1, Forge
Release 2025-02-13 Get
UndertaleMod-1.20.1-2.10.5.jar
MC 1.20.1, Forge
Release 2025-02-12 Get
Undertalemod-1.17.1-1.7.1.jar
MC 1.17.1
Alpha 2022-04-21 Get
Undertalemod-1.17.1-1.10.1.jar
MC 1.17.1
Release 2022-04-21 Get
Undertalemod-1.17.1-1.9.1.jar
MC 1.17.1
Beta 2022-04-21 Get
Undertalemod-1.17.1-1.8.1.jar
MC 1.17.1
Alpha 2022-04-21 Get
UndertaleMod-1.17.1-1.1.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertalemod-1.17.1-1.2.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertalemod-1.17.1-1.3.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertalemod-1.17.1-1.4.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertalemod-1.17.1-1.5.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertalemod-1.17.1-1.6.1.jar
MC 1.17.1
Alpha 2022-04-20 Get
Undertaletest-1.17.1-1.0.0.jar
MC 1.17.1
Alpha 2022-04-19 Get
Undertalemod-1.17.1-1.0.1.jar
MC 1.17.1
Alpha 2022-04-19 Get

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