Echoes of the Underground Mod brings the world of Undertale into Minecraft with fresh gear, building blocks, and underground structures. You can uncover hidden ruins deep beneath the surface, craft powerful Allom equipment, and trade with villagers for rare goodies. Most items, weapons, and foods include unique flavor text to read while you survive and build.

Echoes of the Underground Mod

Features:

  • Adds Undertale themed armor sets and weapons to equip for combat.
  • Introduces custom tools, including Allom tier equipment upgraded at a smithing table.
  • Spawns underground ruin structures deep inside stone and deepslate layers.
  • Adds decorative blocks inspired by Snowdin, Hotland, Waterfall, the True Lab, and the Core.
  • Brings wallpaper patterns, bricks, slabs, stairs, and paintings for building.
  • Adds themed food items and consumables with custom flavor text.
  • Gives villagers and wandering traders new trading options for mod items.
  • Includes custom advancements to track your progress as you play.

How to Use:

  1. Search for underground ruins in stone and deepslate layers while mining.
  2. Craft Amalgamation Ingots and place them in a stonecutter to create decoration blocks.
  3. Obtain an Allom Smithing Template and use a smithing table with Netherite gear to craft Allom tools.
  4. Open the crafting book in your inventory to view recipes for items and weapons.
  5. Trade with villagers and wandering traders to get special supplies.

Commands:

  • /give <player> testmod:<item>: Gives a mod item to a player using the custom mod namespace.
  • /locate structure testmod:<structure>: Locates underground mod structures in your world.

Screenshots:

Wooden wall displaying decorative blocks from the Echoes of the Underground mod
Wooden wall displaying decorative blocks from the Echoes of the Underground mod
Custom weapons and tools inspired by Undertale displayed in item frames
Custom weapons and tools inspired by Undertale displayed in item frames
Various custom food items and materials displayed in item frames on wood
Various custom food items and materials displayed in item frames on wood
A collection of colorful soul items and materials displayed on a wooden wall
A collection of colorful soul items and materials displayed on a wooden wall
A wooden wall displaying various colorful building blocks in item frames at night
A wooden wall displaying various colorful building blocks in item frames at night
Custom paintings featuring a bone and a crest on a gray wall
Custom paintings featuring a bone and a crest on a gray wall
Three armor stands displaying custom Undertale themed armor sets in a snowy biome
Three armor stands displaying custom Undertale themed armor sets in a snowy biome
Crafting recipes for items and gear from the Echoes of the Underground mod
Crafting recipes for items and gear from the Echoes of the Underground mod

Echoes of the Underground Mod Download Links

Filter by

For Minecraft 26.1.2, 26.1.1, 26.1

NeoForge 2 MB Sep 4, 2026

For Minecraft 1.21.4

NeoForge 1 MB Sep 4, 2026

For Minecraft 1.20.1, 1.20

Forge 1 MB Sep 4, 2026

For Minecraft 1.18.2

Forge 702 KB Sep 4, 2026

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