How do I install Undercroft?

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. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Undercroft work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Undercroft

Java modpack listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by RedOptic · on CurseForge

Bringing worlds & features inspired by your favorite TTRPGs to Minecraft! DAYS Worth of New Content Based on DnD and Other TTRPG Games Feats, Skills…

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Fabric. On other versions it may install and then do nothing.

Open in MC Java Mods Get it on Google Play →

Undercroft — Minecraft Java modpack, screenshot 1

Bringing worlds & features inspired by your favorite TTRPGs to Minecraft!

Undercroft — Minecraft Java modpack, screenshot 2

DAYS Worth of New Content
Based on DnD and Other TTRPG Games
Feats, Skills, Origins, & Classes
21 Different Bosses
Player Leveling System
Create Mod
New Biomes
Revitalized Villages
Bountiful Building Blocks
Fresh New Foods
Massive Quest Lines
And So Much More!

Undercroft — Minecraft Java modpack, screenshot 3

Undercroft is a modpack that brings a world inspired by your favorite TTRPG to Minecraft. An immersive experience that will transport you to a mystical realm filled with new locations, fearsome monsters, and ancient secrets waiting to be uncovered.

Undercroft has a carefully curated collection of mods that enable you to embark on epic quests, build sprawling fortresses, and master advanced forms of combat, arcane arts, or even become the greatest musician the world has ever known.

Every corner of Undercroft is full of both opportunity and danger, from battling epic bosses to exploring forgotten ruins. The modpack emphasizes player freedom and creativity, staying true to the essence of your favorite TTRPG. Whether you're an experienced dungeon diver or a newcomer to the realm, there is something here for everyone to enjoy.

-!-!-!-!-!-!-!- THIS PACK IS IN EARLY RELEASE. IT IS FULLY PLAYABLE FROM START TO FINISH, BUT PLEASE LET ME KNOW IF YOU ENCOUNTER ANY BUGS/GLITCHES/CRASHES -!-!-!-!-!-!-!-

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.20.1
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: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Downloads as Undercroft-0.0.1.zip
Download size: 8 KB
Download link checked 17 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Modpacks for Java All Minecraft Java mods Java mods for 1.20