CurseForge · Minecraft mod
Project Block
You have been invited. Experince Project Moon verse inside Minecraft!
Quick answer
Which Project Block release should I use?
Project Block projectminecraft-1.2.0.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 Project Block 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 Project Block projectminecraft-1.2.0.jar need?
projectminecraft-1.2.0.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.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Project Block without breaking your instance.
Built for Project Block projectminecraft-1.2.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use projectminecraft-1.2.0.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 projectminecraft-1.2.0.jar. It opens that exact file at the source.
About this project
What does Project Block add?
Project Block
You have been invited.
A piece of Project Moon's City (Library of Ruina, Limbus Company) brought into Minecraft. It's a chain of boss fights, each one leading to the next, and each one leaving something behind for you to carry into the one after.
You don't need to know the games. If you do, you'll recognise a few faces.
The Library
Somewhere in the world's old chests is an invitation. Hold it up, and the pages carry you to a reception in the Library, where a guest is already waiting.

He doesn't say much. The fight changes more than once before it's over, and he isn't alone in it. Lose, and you wake up at home with everything you carried.
The Black Silence

Win, and his gloves are yours: twelve workshop weapons on one wheel. They won't listen to you at first. Earn them, and there's something waiting in the middle of that wheel.
Someone wants the book back
He leaves a book behind, too. Open it, and someone notices.

Space doesn't open for him. It tears. He comes through with a claw for an arm and three serums on his back, and he isn't shy about using any of them.

One makes him faster than you can follow. One heals what you just did to him. And one takes you along for the ride: keep perfectly still, or you'll be torn apart.

He doesn't keep the fight in one place, either. You'll see more of the world than you planned to, briefly.
Beat him, and he won't leave in one piece. What breaks off him is worth keeping: a little glass and a little crafting, and his claw and serums are yours, on a wheel of their own. His mask, too, if you'd like a trophy.
The Red Gaze

He drops a list on his way out. Most of the names are blacked out. Follow the one that isn't, and at the end of the trail someone is waiting for you.
When you find him, you choose.

Draw your weapon…

…or show him the list.

Either way, he's had a ride waiting for a long time.
Also inside
- Three E.G.O from Limbus Company, each with its own cut-in.
- A mask that hides you from monsters until you hit one.
- Cutscenes, impact frames and slow motion. All of it can be turned off in the config, along with health, damage and cooldown settings for each fight.
Info
- NeoForge 1.21.1, Java 21. Needed on both client and server.
- Optional: Curios (puts the gloves in the hands slot).
- Source and full changelog: https://github.com/Vihellnisch/Project-Minecraft
A fan project. Library of Ruina and Limbus Company belong to Project Moon.
Project description from CurseForge.
Pick your setup
Project Block by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Project Block versions and loaders
projectminecraft-1.2.0.jar
12 Nov 2026
projectminecraft-1.1.1.jar
7 Nov 2026
projectminecraft-1.1.0.jar
7 Nov 2026
Project Minecraft 1.0.0
projectminecraft-1.0.0.jar
31 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.