UnderCraft: UNDERTALE Magic in Minecraft

UnderCraft: Bringing Undertale Powers into Minecraft

Imagine stepping into your favorite Minecraft world, but instead of mining and building with ordinary tools, you wield the soul-charged abilities of Sans, Undyne, or even Asriel Dreemurr. That is exactly what the UnderCraft addon delivers — a creative fusion of Undertale’s iconic characters and the limitless sandbox of Minecraft. Built on top of the Lucraft Core framework, this mod pack transforms your gameplay into a character-driven adventure where every hero feels distinct and powerful.

What Makes UnderCraft Special

UnderCraft is not just a simple reskin of existing superhero mods. It carefully recreates the essence of Undertale characters through custom abilities, animations, and combat mechanics. From the bone-rattling attacks of Sans to the fiery determination of Frisk, each power set feels true to its source material. The mod adds a massive roster of playable characters, each with unique moves that can turn the tide of any battle or simply make exploration a lot more fun.

Full Character Roster

The current version of UnderCraft includes a wide array of heroes and villains from the Undertale universe. Here is a quick look at who you can become:

• Sans – Creative-only mode, deals overwhelming damage with no cooldown. His bone attacks and Gaster Blaster-like projectiles make him a force of nature.
• Papyrus – The coolest skeleton brother, with his signature blue attacks and an unshakable confidence.
• Toriel – Fire magic and protective instincts define this gentle yet formidable character.
• Undyne – Spear-throwing justice with incredible speed and relentless pressure.
• Asgore – The king of the Underground, wielding a massive trident and royal authority.
• Asriel (Absolute God of Hyper Death) – A reality-breaking form with cosmic-level attacks.
• Asriel (Phase 2) – A more grounded but still devastating version of the prince.
• Omega Flowey – The nightmare plant with chaotic, screen-filling assaults.
• Flowey – The manipulative flower with tricky, pellet-based moves.
• Determination – Harness the raw willpower of the protagonist, allowing you to persist against impossible odds.
• Heroine – A unique addition that brings a different flavor of combat to the mix.

Every character has been designed to offer a distinct playstyle, so you can switch between them depending on the challenge ahead. Whether you want to roleplay a pacifist run or go full genocide, UnderCraft gives you the tools.

Required Mods and Setup

UnderCraft does not work in isolation. It depends on a specific set of core mods that provide the superhero framework and shared abilities. Before you can dive into the Underground, you will need to install these prerequisites:

• Minecraft Forge – The mod runs on version 1.12.2, so you must have the latest Forge build for that version. You can obtain it from the official Forge website.
• Lucraft Core – This is the backbone of the entire superhero experience. It handles ability registration, suits, and the hero selection menu. Available on CurseForge.
• Heroes Expansion – Adds a variety of powers and mechanics that many UnderCraft characters rely on. Also found on CurseForge.
• Speedster Heroes – Introduces speed-based abilities used by certain characters. Grab it from CurseForge as well.

Setting up all these mods manually can be a bit tedious, especially when you have to ensure version compatibility. For a smoother experience, many players turn to launchers that handle modpack assembly automatically. If you want to skip the manual file hunting, you can easily install the whole UnderCraft package through the foxygame.net launcher — a convenient, flexible, and modern Minecraft launcher where you can download mods right from the menu, eliminating version conflicts with a single click.

Installation Steps

If you prefer the traditional route, follow these steps:

1. Install Minecraft Forge for 1.12.2 by running the installer from the Forge site.
2. Launch the game once with the Forge profile to create the necessary folders.
3. Download Lucraft Core, Heroes Expansion, and Speedster Heroes from CurseForge.
4. Place all three mod files into the .minecraft/mods folder.
5. Download the UnderCraft addon file and drop it into the same mods folder.
6. Start the game, and you will find the character selection interface in your inventory or through a dedicated keybind.

Developer Insights and the Future of UnderCraft

The project owner has been open about the challenges of maintaining a mod that depends on multiple external frameworks. Life events and a growing interest in data packs shifted focus away from regular updates. The developer noted that many character abilities started to feel like repetitive laser bolts, and finding specific assets for characters like Muffet proved difficult. This honest reflection explains why the addon has not seen recent changes, but it also hints at an exciting pivot.

In a June 2025 announcement, the owner and lead pack developer revealed plans for a full remaster of UnderCraft as a data pack. This new direction would free the project from its reliance on Lucraft’s mods, making it compatible with the latest Minecraft versions. The data pack would be paired with a custom mod that handles keybinds, preserving the familiar feel of the original addon. The first test character for this remaster is the Roaring Knight from Deltarune, chosen to explore how Undertale-style attacks translate into full 3D space. This means Sans’ lasers might finally emerge from a proper Gaster Blaster model instead of his hands, and the entire roster could be rebuilt with more creative freedom.

Why UnderCraft Still Matters

Even in its current state, UnderCraft offers a nostalgic crossover that no other mod replicates. It turns Minecraft into a playground for Undertale fans, allowing them to live out their favorite boss battles or simply mess around with overpowered abilities. The requirement of multiple supporting mods might seem daunting, but the payoff is a deeply customizable hero system that few addons match. And with the promise of a data pack remaster, the community has a lot to look forward to — a version that runs on modern Minecraft, is easier to install, and can evolve without the limitations of older frameworks.

Whether you are a die-hard Undertale enthusiast or just looking for a fresh way to experience Minecraft, UnderCraft delivers a unique blend of charm and chaos. Grab the required mods, pick your favorite character, and let determination guide your next adventure.