CurseForge · Minecraft mod
The Real Knife
This is an Undertale mod made with the AutoMods website.Have fun playing!Please be sure to visit the mod page, because all items can only be crafted.(请一定要去模组页面,因为所有物品仅能合成)
Quick answer
Which The Real Knife release should I use?
The Real Knife real knife.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is The Real Knife required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does The Real Knife real knife.jar need?
real knife.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add The Real Knife without breaking your instance.
Built for The Real Knife real knife.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use real knife.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside real knife.jar. It opens that exact file at the source.
About this project
What does The Real Knife add?
This is a mod based on Undertale, made using the AutoMods website, created by Bilibili creator @鱼某人bz. I'm only in middle school QAQ, so the mod might not be very good—please forgive me (most of it was done by AutoMods). I've added the Real Knife, my locket...
*Stay determined=)
·The real knife
AT-99 About time
You must reach LV 20 to use it.Otherwise, it will refuse to let you use it
damage has no upper limit,(Including killing the player-creator)
Add skills
6 normal skills
1,Vertical Slash
2,Horizontal Slash.
3,Spherical Blast
4,Ultra Vertical Slash
5,Cross Slash
6,Gather
7,Slant Slash
AoE skill
1,Data Error
Easter egg skill
1,Chibaku Tense
Combo skill
1,Slant Slash + Vertical Slash
2,Burst · Chibaku Tensei + Slant Slash
·My locket
+99 Defense Right where it belongs.
Absolute defense against 97% of damage.Remove all debuffs
Set Effect "Determination"
Having the Real Knife and wearing the Locket completes the set: when receiving a lethal hit, you refuse to die (health stops at one heart, brief invincibility, 30-second cooldown), and you continuously regenerate health during that time.
This mod adds around 100 achievements,
Two parallel achievement trees: the Genocide line (first kill, Seven-Form Mastery, Chibaku Tensei, Light of Judgment, combo skill chains, all the way to the final achievement) and the M E R C Y line (spare, backstab, wash your hands, endure). The achievement text and lines include homages to Sans, Undyne, MTT, and other original works
Water of Purification
Right-click to drink: cleanses all negative effects, grants 15 seconds of Regeneration + 15 seconds of Golden Heart shield, and heals 2 hearts.
*Of course, it can't wash away your sins
Note: This mod is still not mature, but its optimization is fairly good. Please point out any issues in the comments.
Known Issues
Sword aura, Burst·Chibaku Tensei, Strong Burst, and Light of Judgment will destroy breakable blocks within their range. Please back up your world before use.
Light of Judgment and large-area terrain skills affect a fairly large area and may cause brief performance strain on servers or low-end devices.
Rule-level clearing is implemented against common invincibility flags and entity-removal routines; custom logic in bosses from different mods may still have compatibility differences.
Crafting and Obtaining
The Real Knife: shapeless crafting with an iron sword, diamond, and glowstone dust.My Locket: shaped crafting with gold ingots and redstone blocks according to a pattern.
Water of Purification: shapeless crafting with a glass bottle, amethyst shards, glowstone dust, and phantom membrane.+
Game version: Minecraft 1.21.1.
Loader: NeoForge 21.1.244.
Place the mod file into the mods folder of the corresponding instance, and launch the game using NeoForge 1.21.1
*Hey, kid, you'd better not try this mod. Otherwise, you're probably going to have a bad time
Project description from CurseForge.
Pick your setup
The Real Knife by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
The Real Knife versions and loaders
real knife.jar
real-knife.jar
15 Nov 2026
11451467.jar
14 Nov 2026
114514.jar
5 Nov 2026
Wuxi‘Undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r42.jar
3 Nov 2026
Wuxi‘Undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r40.jar
1 Nov 2026
Wuxi‘Undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r39.jar
31 Oct 2026
Wuxi‘undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r37.jar
30 Oct 2026
wuxi‘undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r35.jar
28 Oct 2026
Wuxi‘UNDERTALE
mod_1a6ab6ac_1a6ab6ac-1.0.0-r32.jar
25 Oct 2026
Wuxi’undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r29.jar
25 Oct 2026
Wuxi'undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r25.jar
24 Oct 2026
Wuxi‘s undertale
mod_1a6ab6ac_1a6ab6ac-1.0.0-r20.jar
19 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.