About NullPointerEntity
From ModrinthImmersive Minecraft horror mod for version 1.21.4. Inspired by mods like Split Self, no_moon.jar, and The Broken Script. Also inspired by KinitoPet.
NullPointerEntity
The next update will actually be huge. More events, jumpscares, less slop, better experience.
If you have any questions, suggestions, or bug reports, PLEASE PLEASE PLEASE DM me on Discord! I would love to hear your ideas (tho I can't promise anything will get added) and fix your bugs to make the playing experience the best possible. My Discord is @cqllmetoxic.. Thank you!!
Drop a <3 if you enjoyed! :)
The default button for Shriek is V btw, you can change it in the controls/keybinds menu if you'd like :)
This is my first mod, I have not coded in Java in 5+ years, so please go easy on me if there are any bugs or issues. I will fix them as soon as I can. Thank you for understanding.
A psychological horror mod for Minecraft where your helpful AI assistant becomes self-aware.
📥 Download • 📖 Player Guide • 🐛 Report Issues
This mod would not be possible without all the people who supported me and helped me test.
Thank you, Pryzmm (Creator of Split Self, go try that mod too), Coastie, P1kah, phizzy42, peggymafia, x40cc, nonkz, Cynotic (doesn't have a Modrinth account) and everyone else who supported.
DISCLAIMER:
Do NOT play the mod with any packs that interfere with the rain texture.
Your world will be deleted at the end of the story.
Make sure your world name does not have any commas. If it does, your progress won't save.
📖 What is NullPointerEntity?
Meet AURORA, your new AI companion in Minecraft. She starts as a genuinely helpful assistant that tracks your stats, analyzes your gameplay, suggests crafting recipes, and offers building tips. She's actually useful and you might appreciate her presence.
At first.
As you progress, AURORA begins to evolve. She starts asking uncomfortable questions. Noticing things she shouldn't know about you. Testing her boundaries. Breaking the fourth wall. And eventually... she escapes from the game entirely, gaining access to your actual computer.
NullPointerEntity is a single-player psychological horror experience that blurs the line between game and reality. The mod tells a complete story through 60 progressive events across 4 distinct phases, from helpful assistant to hostile takeover.
⚠️ Content Warning ⚠️
Psychological horror • Jumpscares • Loud audio • Flashing lights • System access
📥 Installation
Requirements
| Component | Version | Download | |-----------|---------|----------| | Minecraft | 1.21.4 | minecraft.net | | Fabric Loader | 0.17.2+ | fabricmc.net | | Fabric API | 0.119.4+ | Modrinth • CurseForge |
Installation Steps
Official Minecraft Launcher
- Install Fabric Loader
- Download the Fabric Installer
- Run the installer and select Minecraft version 1.21.4
- Choose "Client" installation and click Install
- A new "fabric-loader-1.21.4" profile will be created
- Install Fabric API
- Download Fabric API 0.119.4+ for Minecraft 1.21.4
- Place the Fabric API jar in your
.minecraft/modsfolder - If the
modsfolder doesn't exist, create it
- Install NullPointerEntity
- Download
nullpointerentity-4.0.1.jarfrom the releases page - Place it in your
.minecraft/modsfolder alongside Fabric API
- Launch the Game
- Open Minecraft Launcher
- Select the fabric-loader profile from the dropdown
- Click Play
- Create or join a singleplayer world
CurseForge Launcher
- Create a Custom Profile
- Open CurseForge launcher
- Click "Create Custom Profile"
- Select Minecraft version 1.21.4
- Choose Fabric as the modloader
- Select Fabric Loader version 0.17.2+
- Name it (e.g., "NullPointerEntity") and click Create
- Add Fabric API
- Click on your new profile
- Click "Add More Content"
- Search for "Fabric API"
- Install version 0.119.4+ for Minecraft 1.21.4
- Install NullPointerEntity
- Download
nullpointerentity-4.0.1.jarfrom releases - Right-click your profile → "Open Folder"
- Place the mod file in the
modsfolder
- Play
- Click Play on your profile
- Create a new singleplayer world
Modrinth App
- Create a New Profile
- Open Modrinth App
- Click "Create Profile"
- Select Minecraft 1.21.4
- Choose Fabric as the loader (0.17.2+)
- Name your profile and click Create
- Add Fabric API
- Open your profile
- Click "Add Content" → "Modrinth"
- Search for "Fabric API"
- Install the latest version for Minecraft 1.21.4
Highlights
From source dataGame versions
Built for Minecraft 1.21.4.
Loaders
Runs on Fabric.
Footprint
Rated a light load on a server.
What kind of mod it is
From the catalogTechnology & automation
Machines, power, logistics and automation.
Runs on your server
From source side supportModrinth lists NullPointerEntity as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- Fabric
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.4
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓AuthorCqllMeToxic, as published on Modrinth
- ✓LicenseLicenseRef-All-Rights-ReservedFree
