Undertale Mod 1.15.2, 1.12.2 is a really awesome mod that adds tons of Undertale characters into your Minecraft game. Not only that, but it comes with it’s own custom map for you to play through. This mod adds Papyrus, Sans, Undyne, Alphys, Mettaton, Mettaton EX, Toriel, Napstablook, Temmie, and of course, Flowey to your Minecraft. Embrace the Genocide route and kill them for awesome items and weapons.
Screenshots:
Undertale Mod 1.15.2, 1.12.2 Download Links
For Minecraft 1.8.9
Mod NPCs: Download from Server 1 – Download from Server 2
Mod Blocks: Download from Server 1 – Download from Server 2
For Minecraft 1.9.0
For Minecraft 1.10.2
For Minecraft 1.15.2
For Minecraft 1.12.2
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 207436.mcaddon
- Download size: 1.1 MB
- Download link checked 30 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.